11913910 has 16 divisors (see below), whose sum is σ = 21797712. Its totient is φ = 4687200.

The previous prime is 11913899. The next prime is 11913953. The reversal of 11913910 is 1931911.

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, 9156 + ... + 10375.

It is an arithmetic number, because the mean of its divisors is an integer number (1362357).

Almost surely, 2^11913910 is an apocalyptic number.

11913910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11913910 is a deficient number, since it is larger than the sum of its proper divisors (9883802).

11913910 is a wasteful number, since it uses less digits than its factorization.

11913910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19599.

The product of its (nonzero) digits is 243, while the sum is 25.

The square root of 11913910 is about 3451.6532270783. The cubic root of 11913910 is about 228.3940426184.

It can be divided in two parts, 119 and 13910, that multiplied together give a triangular number (1655290 = T₁₈₁₉).

The spelling of 11913910 in words is "eleven million, nine hundred thirteen thousand, nine hundred ten".