64604755 has 4 divisors (see below), whose sum is σ = 77525712. Its totient is φ = 51683800.

The previous prime is 64604747. The next prime is 64604797. The reversal of 64604755 is 55740646.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 64604755 - 2³ = 64604747 is a prime.

It is a super-2 number, since 2×64604755² = 8347548737220050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6460471 + ... + 6460480.

It is an arithmetic number, because the mean of its divisors is an integer number (19381428).

Almost surely, 2^64604755 is an apocalyptic number.

64604755 is a deficient number, since it is larger than the sum of its proper divisors (12920957).

64604755 is a wasteful number, since it uses less digits than its factorization.

64604755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12920956.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 64604755 is about 8037.7083176736. The cubic root of 64604755 is about 401.2559585429.

The spelling of 64604755 in words is "sixty-four million, six hundred four thousand, seven hundred fifty-five".