13236978 has 8 divisors (see below), whose sum is σ = 26473968. Its totient is φ = 4412324.

The previous prime is 13236967. The next prime is 13236997. The reversal of 13236978 is 87963231.

It is a sphenic number, since it is the product of 3 distinct primes.

13236978 is an admirable number.

It is a Curzon 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, 1103076 + ... + 1103087.

It is an arithmetic number, because the mean of its divisors is an integer number (3309246).

Almost surely, 2^13236978 is an apocalyptic number.

13236978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13236978 is a wasteful number, since it uses less digits than its factorization.

13236978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206168.

The product of its digits is 54432, while the sum is 39.

The square root of 13236978 is about 3638.2657956779. The cubic root of 13236978 is about 236.5536293715.

The spelling of 13236978 in words is "thirteen million, two hundred thirty-six thousand, nine hundred seventy-eight".