64672601 has 6 divisors (see below), whose sum is σ = 75231450. Its totient is φ = 55433616.

The previous prime is 64672589. The next prime is 64672609. The reversal of 64672601 is 10627646.

It can be written as a sum of positive squares in only one way, i.e., 55056400 + 9616201 = 7420^2 + 3101^2 .

It is not a de Polignac number, because 64672601 - 2⁶ = 64672537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64672609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 659876 + ... + 659973.

It is an arithmetic number, because the mean of its divisors is an integer number (12538575).

Almost surely, 2^64672601 is an apocalyptic number.

It is an amenable number.

64672601 is a deficient number, since it is larger than the sum of its proper divisors (10558849).

64672601 is a wasteful number, since it uses less digits than its factorization.

64672601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319863 (or 1319856 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 64672601 is about 8041.9276917913. The cubic root of 64672601 is about 401.3963717757.

The spelling of 64672601 in words is "sixty-four million, six hundred seventy-two thousand, six hundred one".