13930487 has 4 divisors (see below), whose sum is σ = 13945536. Its totient is φ = 13915440.

The previous prime is 13930481. The next prime is 13930513. The reversal of 13930487 is 78403931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13930487 - 2¹² = 13926391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13930481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6038 + ... + 8019.

It is an arithmetic number, because the mean of its divisors is an integer number (3486384).

Almost surely, 2^13930487 is an apocalyptic number.

13930487 is a deficient number, since it is larger than the sum of its proper divisors (15049).

13930487 is an equidigital number, since it uses as much as digits as its factorization.

13930487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15048.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 13930487 is about 3732.3567621544. The cubic root of 13930487 is about 240.6146686293.

The spelling of 13930487 in words is "thirteen million, nine hundred thirty thousand, four hundred eighty-seven".