12570870 has 32 divisors (see below), whose sum is σ = 32491872. Its totient is φ = 3094272.

The previous prime is 12570869. The next prime is 12570881. The reversal of 12570870 is 7807521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 15727 + ... + 16506.

It is an arithmetic number, because the mean of its divisors is an integer number (1015371).

Almost surely, 2^12570870 is an apocalyptic number.

12570870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12570870 is an abundant number, since it is smaller than the sum of its proper divisors (19921002).

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

12570870 is a wasteful number, since it uses less digits than its factorization.

12570870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32256.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 12570870 is about 3545.5422716420. The cubic root of 12570870 is about 232.5172145885.

The spelling of 12570870 in words is "twelve million, five hundred seventy thousand, eight hundred seventy".