12637992 has 16 divisors (see below), whose sum is σ = 31595040. Its totient is φ = 4212656.

The previous prime is 12637991. The next prime is 12637993. The reversal of 12637992 is 29973621.

It is an interprime number because it is at equal distance from previous prime (12637991) and next prime (12637993).

It is a self number, because there is not a number n which added to its sum of digits gives 12637992.

It is not an unprimeable number, because it can be changed into a prime (12637991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263268 + ... + 263315.

It is an arithmetic number, because the mean of its divisors is an integer number (1974690).

Almost surely, 2^12637992 is an apocalyptic number.

12637992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12637992 is an abundant number, since it is smaller than the sum of its proper divisors (18957048).

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

12637992 is a wasteful number, since it uses less digits than its factorization.

12637992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526592 (or 526588 counting only the distinct ones).

The product of its digits is 40824, while the sum is 39.

The square root of 12637992 is about 3554.9953586468. The cubic root of 12637992 is about 232.9303211000.

The spelling of 12637992 in words is "twelve million, six hundred thirty-seven thousand, nine hundred ninety-two".