9012870 has 48 divisors (see below), whose sum is σ = 24307920. Its totient is φ = 2402784.

The previous prime is 9012869. The next prime is 9012889. The reversal of 9012870 is 782109.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 576 + ... + 4284.

It is an arithmetic number, because the mean of its divisors is an integer number (506415).

Almost surely, 2^9012870 is an apocalyptic number.

9012870 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9012870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12153960).

9012870 is an abundant number, since it is smaller than the sum of its proper divisors (15295050).

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

9012870 is a wasteful number, since it uses less digits than its factorization.

9012870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731 (or 3719 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 9012870 is about 3002.1442337103. The cubic root of 9012870 is about 208.1074857431.

Adding to 9012870 its reverse (782109), we get a palindrome (9794979).

The spelling of 9012870 in words is "nine million, twelve thousand, eight hundred seventy".