13930287 has 16 divisors (see below), whose sum is σ = 22344960. Its totient is φ = 7540992.

The previous prime is 13930261. The next prime is 13930289. The reversal of 13930287 is 78203931.

It is not a de Polignac number, because 13930287 - 2⁸ = 13930031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13930289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17058 + ... + 17855.

It is an arithmetic number, because the mean of its divisors is an integer number (1396560).

Almost surely, 2^13930287 is an apocalyptic number.

13930287 is a deficient number, since it is larger than the sum of its proper divisors (8414673).

13930287 is a wasteful number, since it uses less digits than its factorization.

13930287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34942.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 13930287 is about 3732.3299693355. The cubic root of 13930287 is about 240.6135171222.

The spelling of 13930287 in words is "thirteen million, nine hundred thirty thousand, two hundred eighty-seven".