12870924 has 48 divisors (see below), whose sum is σ = 32973696. Its totient is φ = 3875200.

The previous prime is 12870919. The next prime is 12870941. The reversal of 12870924 is 42907821.

It is a happy number.

It is a super-2 number, since 2×12870924² = 331321369227552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36919 + ... + 37265.

It is an arithmetic number, because the mean of its divisors is an integer number (686952).

Almost surely, 2^12870924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12870924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16486848).

12870924 is an abundant number, since it is smaller than the sum of its proper divisors (20102772).

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

12870924 is a wasteful number, since it uses less digits than its factorization.

12870924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 12870924 is about 3587.6070018886. The cubic root of 12870924 is about 234.3526715084.

The spelling of 12870924 in words is "twelve million, eight hundred seventy thousand, nine hundred twenty-four".