13906965 has 16 divisors (see below), whose sum is σ = 22326336. Its totient is φ = 7392000.

The previous prime is 13906943. The next prime is 13906999. The reversal of 13906965 is 56960931.

It is not a de Polignac number, because 13906965 - 2⁵ = 13906933 is a prime.

It is a super-2 number, since 2×13906965² = 386807351022450, which contains 22 as substring.

It is a Curzon 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, 3565 + ... + 6365.

It is an arithmetic number, because the mean of its divisors is an integer number (1395396).

Almost surely, 2^13906965 is an apocalyptic number.

13906965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13906965 is a deficient number, since it is larger than the sum of its proper divisors (8419371).

13906965 is a wasteful number, since it uses less digits than its factorization.

13906965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 13906965 is about 3729.2043387296. The cubic root of 13906965 is about 240.4791642313.

The spelling of 13906965 in words is "thirteen million, nine hundred six thousand, nine hundred sixty-five".