64730328 has 32 divisors (see below), whose sum is σ = 174274800. Its totient is φ = 19916928.

The previous prime is 64730293. The next prime is 64730329. The reversal of 64730328 is 82303746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64730329) 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, 103423 + ... + 104046.

Almost surely, 2^64730328 is an apocalyptic number.

It is an amenable number.

64730328 is an abundant number, since it is smaller than the sum of its proper divisors (109544472).

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

64730328 is a wasteful number, since it uses less digits than its factorization.

64730328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207491 (or 207487 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 64730328 is about 8045.5160182551. The cubic root of 64730328 is about 401.5157655484.

The spelling of 64730328 in words is "sixty-four million, seven hundred thirty thousand, three hundred twenty-eight".