64604730 has 16 divisors (see below), whose sum is σ = 155051424. Its totient is φ = 17227920.

The previous prime is 64604717. The next prime is 64604737. The reversal of 64604730 is 3740646.

It is a super-2 number, since 2×64604730² = 8347542276745800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2153491 = 64604730 / (6 + 4 + 6 + 0 + 4 + 7 + 3 + 0).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64604737) 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, 1076716 + ... + 1076775.

It is an arithmetic number, because the mean of its divisors is an integer number (9690714).

Almost surely, 2^64604730 is an apocalyptic number.

64604730 is an abundant number, since it is smaller than the sum of its proper divisors (90446694).

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

64604730 is a wasteful number, since it uses less digits than its factorization.

64604730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153501.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 64604730 is about 8037.7067625038. The cubic root of 64604730 is about 401.2559067851.

The spelling of 64604730 in words is "sixty-four million, six hundred four thousand, seven hundred thirty".