11507965 has 16 divisors (see below), whose sum is σ = 15852672. Its totient is φ = 7856064.

The previous prime is 11507959. The next prime is 11507989. The reversal of 11507965 is 56970511.

It is a cyclic number.

It is not a de Polignac number, because 11507965 - 2¹¹ = 11505917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11507965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9102 + ... + 10288.

It is an arithmetic number, because the mean of its divisors is an integer number (990792).

Almost surely, 2^11507965 is an apocalyptic number.

11507965 is the 2770-th pentagonal number.

It is an amenable number.

11507965 is a deficient number, since it is larger than the sum of its proper divisors (4344707).

11507965 is a wasteful number, since it uses less digits than its factorization.

11507965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 11507965 is about 3392.3391634682. The cubic root of 11507965 is about 225.7699711343.

The spelling of 11507965 in words is "eleven million, five hundred seven thousand, nine hundred sixty-five".