12976613 has 4 divisors (see below), whose sum is σ = 13974828. Its totient is φ = 11978400.

The previous prime is 12976567. The next prime is 12976643. The reversal of 12976613 is 31667921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1800964 + 11175649 = 1342^2 + 3343^2 .

It is a cyclic number.

It is not a de Polignac number, because 12976613 - 2⁸ = 12976357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12976643) 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, 499088 + ... + 499113.

It is an arithmetic number, because the mean of its divisors is an integer number (3493707).

Almost surely, 2^12976613 is an apocalyptic number.

12976613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12976613 is a deficient number, since it is larger than the sum of its proper divisors (998215).

12976613 is an equidigital number, since it uses as much as digits as its factorization.

12976613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998214.

The product of its digits is 13608, while the sum is 35.

The square root of 12976613 is about 3602.3066221520. The cubic root of 12976613 is about 234.9923824300.

It can be divided in two parts, 1297661 and 3, that multiplied together give a palindrome (3892983).

The spelling of 12976613 in words is "twelve million, nine hundred seventy-six thousand, six hundred thirteen".