64477585 has 16 divisors (see below), whose sum is σ = 81181440. Its totient is φ = 49094080.

The previous prime is 64477573. The next prime is 64477607. The reversal of 64477585 is 58577446.

It is a happy number.

It is not a de Polignac number, because 64477585 - 2¹³ = 64469393 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7164 + ... + 13426.

It is an arithmetic number, because the mean of its divisors is an integer number (5073840).

Almost surely, 2^64477585 is an apocalyptic number.

It is an amenable number.

64477585 is a deficient number, since it is larger than the sum of its proper divisors (16703855).

64477585 is a wasteful number, since it uses less digits than its factorization.

64477585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6368.

The product of its digits is 940800, while the sum is 46.

The square root of 64477585 is about 8029.7935838974. The cubic root of 64477585 is about 400.9925040524.

The spelling of 64477585 in words is "sixty-four million, four hundred seventy-seven thousand, five hundred eighty-five".