12880654 has 4 divisors (see below), whose sum is σ = 19320984. Its totient is φ = 6440326.

The previous prime is 12880649. The next prime is 12880657. The reversal of 12880654 is 45608821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45608821 = 331 ⋅137791.

It is a super-2 number, since 2×12880654² = 331822494935432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12880657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3220162 + ... + 3220165.

It is an arithmetic number, because the mean of its divisors is an integer number (4830246).

Almost surely, 2^12880654 is an apocalyptic number.

12880654 is a deficient number, since it is larger than the sum of its proper divisors (6440330).

12880654 is an equidigital number, since it uses as much as digits as its factorization.

12880654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440329.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 12880654 is about 3588.9628028164. The cubic root of 12880654 is about 234.4117109666.

The spelling of 12880654 in words is "twelve million, eight hundred eighty thousand, six hundred fifty-four".