12738976 has 24 divisors (see below), whose sum is σ = 25193700. Its totient is φ = 6340608.

The previous prime is 12738959. The next prime is 12738977. The reversal of 12738976 is 67983721.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11971600 + 767376 = 3460^2 + 876^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12738977) 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, 7450 + ... + 8998.

Almost surely, 2^12738976 is an apocalyptic number.

12738976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12738976 is a deficient number, since it is larger than the sum of its proper divisors (12454724).

12738976 is a wasteful number, since it uses less digits than its factorization.

12738976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816 (or 1808 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The square root of 12738976 is about 3569.1702116879. The cubic root of 12738976 is about 233.5490866086.

The spelling of 12738976 in words is "twelve million, seven hundred thirty-eight thousand, nine hundred seventy-six".