13903956 has 36 divisors (see below), whose sum is σ = 38342304. Its totient is φ = 4213200.

The previous prime is 13903949. The next prime is 13903979. The reversal of 13903956 is 65930931.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13903956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17160 + ... + 17951.

It is an arithmetic number, because the mean of its divisors is an integer number (1065064).

Almost surely, 2^13903956 is an apocalyptic number.

It is an amenable number.

13903956 is an abundant number, since it is smaller than the sum of its proper divisors (24438348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13903956 is a wasteful number, since it uses less digits than its factorization.

13903956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35132 (or 35127 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 13903956 is about 3728.8008796395. The cubic root of 13903956 is about 240.4618191096.

The spelling of 13903956 in words is "thirteen million, nine hundred three thousand, nine hundred fifty-six".