12657974 has 24 divisors (see below), whose sum is σ = 22223160. Its totient is φ = 5391456.

The previous prime is 12657973. The next prime is 12657977. The reversal of 12657974 is 47975621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12657973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21962 + ... + 22530.

It is an arithmetic number, because the mean of its divisors is an integer number (925965).

Almost surely, 2^12657974 is an apocalyptic number.

12657974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12657974 is a deficient number, since it is larger than the sum of its proper divisors (9565186).

12657974 is a wasteful number, since it uses less digits than its factorization.

12657974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 805 counting only the distinct ones).

The product of its digits is 105840, while the sum is 41.

The square root of 12657974 is about 3557.8046601802. The cubic root of 12657974 is about 233.0530189354.

It can be divided in two parts, 12657 and 974, that added together give a palindrome (13631).

The spelling of 12657974 in words is "twelve million, six hundred fifty-seven thousand, nine hundred seventy-four".