5991264 has 72 divisors (see below), whose sum is σ = 17336592. Its totient is φ = 1962240.

The previous prime is 5991263. The next prime is 5991311. The reversal of 5991264 is 4621995.

5991264 is a `hidden beast` number, since 599 + 1 + 2 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5991263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20302 + ... + 20594.

It is an arithmetic number, because the mean of its divisors is an integer number (240786).

Almost surely, 2^5991264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5991264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8668296).

5991264 is an abundant number, since it is smaller than the sum of its proper divisors (11345328).

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

5991264 is a wasteful number, since it uses less digits than its factorization.

5991264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 369 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 5991264 is about 2447.7058646823. The cubic root of 5991264 is about 181.6238255271.

The spelling of 5991264 in words is "five million, nine hundred ninety-one thousand, two hundred sixty-four".