999470070 has 128 divisors (see below), whose sum is σ = 2816225280. Its totient is φ = 251838720.

The previous prime is 999470051. The next prime is 999470111. The reversal of 999470070 is 70074999.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 999469998 and 999470025.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 358522 + ... + 361298.

It is an arithmetic number, because the mean of its divisors is an integer number (22001760).

Almost surely, 2^999470070 is an apocalyptic number.

999470070 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

999470070 is the 19995-th heptagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999470070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1408112640).

999470070 is an abundant number, since it is smaller than the sum of its proper divisors (1816755210).

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

999470070 is a wasteful number, since it uses less digits than its factorization.

999470070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867 (or 2861 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 999470070 is about 31614.3965623258. The cubic root of 999470070 is about 999.8233254546.

The spelling of 999470070 in words is "nine hundred ninety-nine million, four hundred seventy thousand, seventy".