13930087 has 2 divisors, whose sum is σ = 13930088. Its totient is φ = 13930086.

The previous prime is 13930069. The next prime is 13930127. The reversal of 13930087 is 78003931.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13930087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13930027) 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 as a sum of consecutive naturals, namely, 6965043 + 6965044.

It is an arithmetic number, because the mean of its divisors is an integer number (6965044).

Almost surely, 2^13930087 is an apocalyptic number.

13930087 is a deficient number, since it is larger than the sum of its proper divisors (1).

13930087 is an equidigital number, since it uses as much as digits as its factorization.

13930087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 13930087 is about 3732.3031763242. The cubic root of 13930087 is about 240.6123656041.

The spelling of 13930087 in words is "thirteen million, nine hundred thirty thousand, eighty-seven".