12897404 has 18 divisors (see below), whose sum is σ = 24441480. Its totient is φ = 5952336.

The previous prime is 12897383. The next prime is 12897427. The reversal of 12897404 is 40479821.

12897404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8864 + ... + 10215.

It is an arithmetic number, because the mean of its divisors is an integer number (1357860).

Almost surely, 2^12897404 is an apocalyptic number.

It is an amenable number.

12897404 is a deficient number, since it is larger than the sum of its proper divisors (11544076).

12897404 is a wasteful number, since it uses less digits than its factorization.

12897404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19109 (or 19094 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 12897404 is about 3591.2955879459. The cubic root of 12897404 is about 234.5132766020.

The spelling of 12897404 in words is "twelve million, eight hundred ninety-seven thousand, four hundred four".