11715816 has 32 divisors (see below), whose sum is σ = 33474240. Its totient is φ = 3347328.

The previous prime is 11715731. The next prime is 11715817. The reversal of 11715816 is 61851711.

It is not an unprimeable number, because it can be changed into a prime (11715817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34701 + ... + 35036.

It is an arithmetic number, because the mean of its divisors is an integer number (1046070).

Almost surely, 2^11715816 is an apocalyptic number.

It is an amenable number.

11715816 is an abundant number, since it is smaller than the sum of its proper divisors (21758424).

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

11715816 is a wasteful number, since it uses less digits than its factorization.

11715816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69753 (or 69749 counting only the distinct ones).

The product of its digits is 1680, while the sum is 30.

The square root of 11715816 is about 3422.8374194519. The cubic root of 11715816 is about 227.1211163198.

The spelling of 11715816 in words is "eleven million, seven hundred fifteen thousand, eight hundred sixteen".