75620736 has 64 divisors (see below), whose sum is σ = 223196400. Its totient is φ = 25205760.

The previous prime is 75620707. The next prime is 75620759. The reversal of 75620736 is 63702657.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

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

It is a self number, because there is not a number n which added to its sum of digits gives 75620736.

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, 7485 + ... + 14396.

Almost surely, 2^75620736 is an apocalyptic number.

It is an amenable number.

75620736 is an abundant number, since it is smaller than the sum of its proper divisors (147575664).

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

75620736 is a wasteful number, since it uses less digits than its factorization.

75620736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21904 (or 21886 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 75620736 is about 8696.0183992446. The cubic root of 75620736 is about 422.8765798572.

The spelling of 75620736 in words is "seventy-five million, six hundred twenty thousand, seven hundred thirty-six".