13717965 has 16 divisors (see below), whose sum is σ = 22657536. Its totient is φ = 7080000.

The previous prime is 13717939. The next prime is 13717969. The reversal of 13717965 is 56971731.

13717965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13717965 - 2⁸ = 13717709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13717969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14286 + ... + 15215.

It is an arithmetic number, because the mean of its divisors is an integer number (1416096).

Almost surely, 2^13717965 is an apocalyptic number.

13717965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13717965 is a deficient number, since it is larger than the sum of its proper divisors (8939571).

13717965 is a wasteful number, since it uses less digits than its factorization.

13717965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29540.

The product of its digits is 39690, while the sum is 39.

The square root of 13717965 is about 3703.7771261241. Note that the first 3 decimals coincide. The cubic root of 13717965 is about 239.3847958915.

The spelling of 13717965 in words is "thirteen million, seven hundred seventeen thousand, nine hundred sixty-five".