5991864 has 32 divisors (see below), whose sum is σ = 15498000. Its totient is φ = 1928192.

The previous prime is 5991857. The next prime is 5991883. The reversal of 5991864 is 4681995.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3609 + ... + 5000.

Almost surely, 2^5991864 is an apocalyptic number.

It is an amenable number.

5991864 is an abundant number, since it is smaller than the sum of its proper divisors (9506136).

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

5991864 is a wasteful number, since it uses less digits than its factorization.

5991864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8647 (or 8643 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 5991864 is about 2447.8284253599. The cubic root of 5991864 is about 181.6298882799.

The spelling of 5991864 in words is "five million, nine hundred ninety-one thousand, eight hundred sixty-four".