12972858 has 16 divisors (see below), whose sum is σ = 27311520. Its totient is φ = 4096656.

The previous prime is 12972833. The next prime is 12972871. The reversal of 12972858 is 85827921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56785 + ... + 57012.

It is an arithmetic number, because the mean of its divisors is an integer number (1706970).

Almost surely, 2^12972858 is an apocalyptic number.

12972858 is an abundant number, since it is smaller than the sum of its proper divisors (14338662).

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

12972858 is a wasteful number, since it uses less digits than its factorization.

12972858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113821.

The product of its digits is 80640, while the sum is 42.

The square root of 12972858 is about 3601.7853906084. The cubic root of 12972858 is about 234.9697139180.

The spelling of 12972858 in words is "twelve million, nine hundred seventy-two thousand, eight hundred fifty-eight".