13970615 has 16 divisors (see below), whose sum is σ = 17438976. Its totient is φ = 10732800.

The previous prime is 13970581. The next prime is 13970633. The reversal of 13970615 is 51607931.

It is a de Polignac number, because none of the positive numbers 2^k-13970615 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26555 + ... + 27075.

It is an arithmetic number, because the mean of its divisors is an integer number (1089936).

Almost surely, 2^13970615 is an apocalyptic number.

13970615 is a deficient number, since it is larger than the sum of its proper divisors (3468361).

13970615 is a wasteful number, since it uses less digits than its factorization.

13970615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 13970615 is about 3737.7285883274. The cubic root of 13970615 is about 240.8454844213.

The spelling of 13970615 in words is "thirteen million, nine hundred seventy thousand, six hundred fifteen".