64686601 has 8 divisors (see below), whose sum is σ = 74255040. Its totient is φ = 55200048.

The previous prime is 64686599. The next prime is 64686607. The reversal of 64686601 is 10668646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64686601 - 2¹ = 64686599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64686607) 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, 18766 + ... + 21943.

It is an arithmetic number, because the mean of its divisors is an integer number (9281880).

Almost surely, 2^64686601 is an apocalyptic number.

It is an amenable number.

64686601 is a deficient number, since it is larger than the sum of its proper divisors (9568439).

64686601 is a wasteful number, since it uses less digits than its factorization.

64686601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40943.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 64686601 is about 8042.7980827570. The cubic root of 64686601 is about 401.4253337764.

The spelling of 64686601 in words is "sixty-four million, six hundred eighty-six thousand, six hundred one".