11917902 has 16 divisors (see below), whose sum is σ = 25090560. Its totient is φ = 3763512.

The previous prime is 11917891. The next prime is 11917937. The reversal of 11917902 is 20971911.

It is a self number, because there is not a number n which added to its sum of digits gives 11917902.

It is a congruent 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, 52158 + ... + 52385.

It is an arithmetic number, because the mean of its divisors is an integer number (1568160).

Almost surely, 2^11917902 is an apocalyptic number.

11917902 is an abundant number, since it is smaller than the sum of its proper divisors (13172658).

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

11917902 is a wasteful number, since it uses less digits than its factorization.

11917902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104567.

The product of its (nonzero) digits is 1134, while the sum is 30.

The square root of 11917902 is about 3452.2314522639. The cubic root of 11917902 is about 228.4195491398.

The spelling of 11917902 in words is "eleven million, nine hundred seventeen thousand, nine hundred two".