13907665 has 8 divisors (see below), whose sum is σ = 16777728. Its totient is φ = 11067120.

The previous prime is 13907603. The next prime is 13907681. The reversal of 13907665 is 56670931.

13907665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-13907665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6327 + ... + 8236.

It is an arithmetic number, because the mean of its divisors is an integer number (2097216).

Almost surely, 2^13907665 is an apocalyptic number.

It is an amenable number.

13907665 is a deficient number, since it is larger than the sum of its proper divisors (2870063).

13907665 is a wasteful number, since it uses less digits than its factorization.

13907665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14759.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 13907665 is about 3729.2981913491. The cubic root of 13907665 is about 240.4831989623.

The spelling of 13907665 in words is "thirteen million, nine hundred seven thousand, six hundred sixty-five".