12976615 has 4 divisors (see below), whose sum is σ = 15571944. Its totient is φ = 10381288.

The previous prime is 12976567. The next prime is 12976643. The reversal of 12976615 is 51667921.

12976615 = 1609² + 1610² + ... + 1613².

12976615 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51667921 = 67 ⋅771163.

It is a cyclic number.

It is not a de Polignac number, because 12976615 - 2¹¹ = 12974567 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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, 1297657 + ... + 1297666.

It is an arithmetic number, because the mean of its divisors is an integer number (3892986).

Almost surely, 2^12976615 is an apocalyptic number.

12976615 is a deficient number, since it is larger than the sum of its proper divisors (2595329).

12976615 is an equidigital number, since it uses as much as digits as its factorization.

12976615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595328.

The product of its digits is 22680, while the sum is 37.

The square root of 12976615 is about 3602.3068997519. The cubic root of 12976615 is about 234.9923945026.

The spelling of 12976615 in words is "twelve million, nine hundred seventy-six thousand, six hundred fifteen".