11558864 has 20 divisors (see below), whose sum is σ = 22452804. Its totient is φ = 5764608.

The previous prime is 11558863. The next prime is 11558909. The reversal of 11558864 is 46885511.

11558864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7182400 + 4376464 = 2680^2 + 2092^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11558863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8264 + ... + 9560.

Almost surely, 2^11558864 is an apocalyptic number.

It is an amenable number.

11558864 is a deficient number, since it is larger than the sum of its proper divisors (10893940).

11558864 is a wasteful number, since it uses less digits than its factorization.

11558864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862 (or 1856 counting only the distinct ones).

The product of its digits is 38400, while the sum is 38.

The square root of 11558864 is about 3399.8329370721. The cubic root of 11558864 is about 226.1023370293.

It can be divided in two parts, 115 and 58864, that multiplied together give a triangular number (6769360 = T₃₆₇₉).

The spelling of 11558864 in words is "eleven million, five hundred fifty-eight thousand, eight hundred sixty-four".