12997376 has 36 divisors (see below), whose sum is σ = 29654352. Its totient is φ = 5569536.

The previous prime is 12997357. The next prime is 12997379. The reversal of 12997376 is 67379921.

It is a happy number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12997379) 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, 1835 + ... + 5418.

It is an arithmetic number, because the mean of its divisors is an integer number (823732).

Almost surely, 2^12997376 is an apocalyptic number.

12997376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12997376 is an abundant number, since it is smaller than the sum of its proper divisors (16656976).

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

12997376 is an frugal number, since it uses more digits than its factorization.

12997376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7276 (or 7262 counting only the distinct ones).

The product of its digits is 142884, while the sum is 44.

The square root of 12997376 is about 3605.1873737713. The cubic root of 12997376 is about 235.1176474454.

The spelling of 12997376 in words is "twelve million, nine hundred ninety-seven thousand, three hundred seventy-six".