64685595 has 96 divisors (see below), whose sum is σ = 126489600. Its totient is φ = 28035072.

The previous prime is 64685587. The next prime is 64685611. The reversal of 64685595 is 59558646.

It is not a de Polignac number, because 64685595 - 2³ = 64685587 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 818766 + ... + 818844.

It is an arithmetic number, because the mean of its divisors is an integer number (1317600).

Almost surely, 2^64685595 is an apocalyptic number.

64685595 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64685595 is a deficient number, since it is larger than the sum of its proper divisors (61804005).

64685595 is a wasteful number, since it uses less digits than its factorization.

64685595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 136 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 48.

The square root of 64685595 is about 8042.7355420901. The cubic root of 64685595 is about 401.4232527891.

The spelling of 64685595 in words is "sixty-four million, six hundred eighty-five thousand, five hundred ninety-five".