64577063 has 4 divisors (see below), whose sum is σ = 64963920. Its totient is φ = 64190208.

The previous prime is 64577017. The next prime is 64577069. The reversal of 64577063 is 36077546.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36077546 = 2 ⋅18038773.

It is a cyclic number.

It is not a de Polignac number, because 64577063 - 2²⁴ = 47799847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64577069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193178 + ... + 193511.

It is an arithmetic number, because the mean of its divisors is an integer number (16240980).

Almost surely, 2^64577063 is an apocalyptic number.

64577063 is a deficient number, since it is larger than the sum of its proper divisors (386857).

64577063 is a wasteful number, since it uses less digits than its factorization.

64577063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386856.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 64577063 is about 8035.9855027246. The cubic root of 64577063 is about 401.1986192753.

The spelling of 64577063 in words is "sixty-four million, five hundred seventy-seven thousand, sixty-three".