7500864 has 56 divisors (see below), whose sum is σ = 22685248. Its totient is φ = 2142720.

The previous prime is 7500863. The next prime is 7500881. The reversal of 7500864 is 4680057.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7500863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1447 + ... + 4134.

Almost surely, 2^7500864 is an apocalyptic number.

It is an amenable number.

7500864 is an abundant number, since it is smaller than the sum of its proper divisors (15184384).

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

7500864 is a wasteful number, since it uses less digits than its factorization.

7500864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5603 (or 5593 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 7500864 is about 2738.7705270796. The cubic root of 7500864 is about 195.7508983157.

The spelling of 7500864 in words is "seven million, five hundred thousand, eight hundred sixty-four".