12976811 has 4 divisors (see below), whose sum is σ = 12993624. Its totient is φ = 12960000.

The previous prime is 12976793. The next prime is 12976819. The reversal of 12976811 is 11867921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12976811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12976819) 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, 7190 + ... + 8811.

It is an arithmetic number, because the mean of its divisors is an integer number (3248406).

Almost surely, 2^12976811 is an apocalyptic number.

12976811 is a deficient number, since it is larger than the sum of its proper divisors (16813).

12976811 is an equidigital number, since it uses as much as digits as its factorization.

12976811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16812.

The product of its digits is 6048, while the sum is 35.

The square root of 12976811 is about 3602.3341044384. The cubic root of 12976811 is about 234.9935776123.

It can be divided in two parts, 12976 and 811, that multiplied together give a square (10523536 = 3244²).

The spelling of 12976811 in words is "twelve million, nine hundred seventy-six thousand, eight hundred eleven".