13972086 has 24 divisors (see below), whose sum is σ = 31590000. Its totient is φ = 4454736.

The previous prime is 13972081. The next prime is 13972097. The reversal of 13972086 is 68027931.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13972086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13972081) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 16461 + ... + 17288.

It is an arithmetic number, because the mean of its divisors is an integer number (1316250).

Almost surely, 2^13972086 is an apocalyptic number.

13972086 is an abundant number, since it is smaller than the sum of its proper divisors (17617914).

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

13972086 is a wasteful number, since it uses less digits than its factorization.

13972086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33780 (or 33777 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 13972086 is about 3737.9253604105. The cubic root of 13972086 is about 240.8539371934.

The spelling of 13972086 in words is "thirteen million, nine hundred seventy-two thousand, eighty-six".