12776404 has 6 divisors (see below), whose sum is σ = 22358714. Its totient is φ = 6388200.

The previous prime is 12776383. The next prime is 12776411. The reversal of 12776404 is 40467721.

It can be written as a sum of positive squares in only one way, i.e., 7300804 + 5475600 = 2702^2 + 2340^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1597047 + ... + 1597054.

Almost surely, 2^12776404 is an apocalyptic number.

It is an amenable number.

12776404 is a deficient number, since it is larger than the sum of its proper divisors (9582310).

12776404 is a wasteful number, since it uses less digits than its factorization.

12776404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194105 (or 3194103 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 12776404 is about 3574.4096015986. The cubic root of 12776404 is about 233.7775908027. Note that the first 3 decimals are identical.

The spelling of 12776404 in words is "twelve million, seven hundred seventy-six thousand, four hundred four".