13900715 has 16 divisors (see below), whose sum is σ = 17729280. Its totient is φ = 10442880.

The previous prime is 13900709. The next prime is 13900721. The reversal of 13900715 is 51700931.

It is an interprime number because it is at equal distance from previous prime (13900709) and next prime (13900721).

It is not a de Polignac number, because 13900715 - 2⁴ = 13900699 is a prime.

It is a super-2 number, since 2×13900715² = 386459755022450, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4070 + ... + 6660.

It is an arithmetic number, because the mean of its divisors is an integer number (1108080).

Almost surely, 2^13900715 is an apocalyptic number.

13900715 is a deficient number, since it is larger than the sum of its proper divisors (3828565).

13900715 is a wasteful number, since it uses less digits than its factorization.

13900715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 13900715 is about 3728.3662641967. The cubic root of 13900715 is about 240.4431338444.

The spelling of 13900715 in words is "thirteen million, nine hundred thousand, seven hundred fifteen".