64636601 has 8 divisors (see below), whose sum is σ = 71414784. Its totient is φ = 58189120.

The previous prime is 64636597. The next prime is 64636603. The reversal of 64636601 is 10663646.

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 64636601 - 2² = 64636597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64636603) 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, 82265 + ... + 83046.

It is an arithmetic number, because the mean of its divisors is an integer number (8926848).

Almost surely, 2^64636601 is an apocalyptic number.

It is an amenable number.

64636601 is a deficient number, since it is larger than the sum of its proper divisors (6778183).

64636601 is a wasteful number, since it uses less digits than its factorization.

64636601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165351.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 64636601 is about 8039.6891109047. The cubic root of 64636601 is about 401.3218788619.

The spelling of 64636601 in words is "sixty-four million, six hundred thirty-six thousand, six hundred one".