12880976 has 10 divisors (see below), whose sum is σ = 24956922. Its totient is φ = 6440480.

The previous prime is 12880949. The next prime is 12880979. The reversal of 12880976 is 67908821.

It can be written as a sum of positive squares in only one way, i.e., 12418576 + 462400 = 3524^2 + 680^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12880979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402515 + ... + 402546.

Almost surely, 2^12880976 is an apocalyptic number.

12880976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12880976 is a deficient number, since it is larger than the sum of its proper divisors (12075946).

12880976 is an equidigital number, since it uses as much as digits as its factorization.

12880976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805069 (or 805063 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 12880976 is about 3589.0076622933. The cubic root of 12880976 is about 234.4136642820.

The spelling of 12880976 in words is "twelve million, eight hundred eighty thousand, nine hundred seventy-six".