1185864 has 16 divisors (see below), whose sum is σ = 2964720. Its totient is φ = 395280.

The previous prime is 1185859. The next prime is 1185871. The reversal of 1185864 is 4685811.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24682 + ... + 24729.

It is an arithmetic number, because the mean of its divisors is an integer number (185295).

2^1185864 is an apocalyptic number.

It is an amenable number.

1185864 is an abundant number, since it is smaller than the sum of its proper divisors (1778856).

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

1185864 is a wasteful number, since it uses less digits than its factorization.

1185864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49420 (or 49416 counting only the distinct ones).

The product of its digits is 7680, while the sum is 33.

The square root of 1185864 is about 1088.9738288866. The cubic root of 1185864 is about 105.8469370296.

The spelling of 1185864 in words is "one million, one hundred eighty-five thousand, eight hundred sixty-four".