64328750 has 40 divisors (see below), whose sum is σ = 122979384. Its totient is φ = 25220000.

The previous prime is 64328749. The next prime is 64328767. The reversal of 64328750 is 5782346.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 64328750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65765 + ... + 66735.

Almost surely, 2^64328750 is an apocalyptic number.

64328750 is a deficient number, since it is larger than the sum of its proper divisors (58650634).

64328750 is an equidigital number, since it uses as much as digits as its factorization.

64328750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 64328750 is about 8020.5205566721. The cubic root of 64328750 is about 400.6837264627.

The spelling of 64328750 in words is "sixty-four million, three hundred twenty-eight thousand, seven hundred fifty".