13047836 has 12 divisors (see below), whose sum is σ = 22876728. Its totient is φ = 6511632.

The previous prime is 13047829. The next prime is 13047863. The reversal of 13047836 is 63874031.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431 + ... + 5126.

It is an arithmetic number, because the mean of its divisors is an integer number (1906394).

Almost surely, 2^13047836 is an apocalyptic number.

It is an amenable number.

13047836 is a deficient number, since it is larger than the sum of its proper divisors (9828892).

13047836 is a wasteful number, since it uses less digits than its factorization.

13047836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6148 (or 6146 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 13047836 is about 3612.1788438559. The cubic root of 13047836 is about 235.4215220168.

The spelling of 13047836 in words is "thirteen million, forty-seven thousand, eight hundred thirty-six".