12687954 has 16 divisors (see below), whose sum is σ = 25423200. Its totient is φ = 4221440.

The previous prime is 12687947. The next prime is 12687971. The reversal of 12687954 is 45978621.

It is a super-2 number, since 2×12687954² = 321968353412232, which contains 22 as substring.

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, 2197 + ... + 5495.

It is an arithmetic number, because the mean of its divisors is an integer number (1588950).

Almost surely, 2^12687954 is an apocalyptic number.

12687954 is an abundant number, since it is smaller than the sum of its proper divisors (12735246).

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

12687954 is a wasteful number, since it uses less digits than its factorization.

12687954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945.

The product of its digits is 120960, while the sum is 42.

The square root of 12687954 is about 3562.0154407301. The cubic root of 12687954 is about 233.2368666994.

The spelling of 12687954 in words is "twelve million, six hundred eighty-seven thousand, nine hundred fifty-four".