11687915 has 8 divisors (see below), whose sum is σ = 14112528. Its totient is φ = 9292320.

The previous prime is 11687909. The next prime is 11687917. The reversal of 11687915 is 51978611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11687915 - 2¹⁶ = 11622379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11687917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6356 + ... + 7985.

It is an arithmetic number, because the mean of its divisors is an integer number (1764066).

Almost surely, 2^11687915 is an apocalyptic number.

11687915 is a deficient number, since it is larger than the sum of its proper divisors (2424613).

11687915 is a wasteful number, since it uses less digits than its factorization.

11687915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14509.

The product of its digits is 15120, while the sum is 38.

The square root of 11687915 is about 3418.7592778668. The cubic root of 11687915 is about 226.9406780888.

The spelling of 11687915 in words is "eleven million, six hundred eighty-seven thousand, nine hundred fifteen".