999867060 has 72 divisors (see below), whose sum is σ = 3052334376. Its totient is φ = 264925440.

The previous prime is 999867047. The next prime is 999867061. The reversal of 999867060 is 60768999.

999867060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 170772624 + 829094436 = 13068^2 + 28794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 999866988 and 999867006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999867061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10570 + ... + 45950.

It is an arithmetic number, because the mean of its divisors is an integer number (42393533).

Almost surely, 2^999867060 is an apocalyptic number.

999867060 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999867060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1526167188).

999867060 is an abundant number, since it is smaller than the sum of its proper divisors (2052467316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999867060 is a wasteful number, since it uses less digits than its factorization.

999867060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35553 (or 35548 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 999867060 is about 31620.6745658596. The cubic root of 999867060 is about 999.9556847029.

The spelling of 999867060 in words is "nine hundred ninety-nine million, eight hundred sixty-seven thousand, sixty".