12999376 has 20 divisors (see below), whose sum is σ = 27124132. Its totient is φ = 5999616.

The previous prime is 12999367. The next prime is 12999379. The reversal of 12999376 is 67399921.

It can be written as a sum of positive squares in 2 ways, for example, as 3240000 + 9759376 = 1800^2 + 3124^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12999379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31041 + ... + 31456.

Almost surely, 2^12999376 is an apocalyptic number.

12999376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12999376 is an abundant number, since it is smaller than the sum of its proper divisors (14124756).

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

12999376 is a wasteful number, since it uses less digits than its factorization.

12999376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62518 (or 62512 counting only the distinct ones).

The product of its digits is 183708, while the sum is 46.

The square root of 12999376 is about 3605.4647411950. The cubic root of 12999376 is about 235.1297065764.

The spelling of 12999376 in words is "twelve million, nine hundred ninety-nine thousand, three hundred seventy-six".