64660607 has 8 divisors (see below), whose sum is σ = 70990032. Its totient is φ = 58406400.

The previous prime is 64660601. The next prime is 64660627. The reversal of 64660607 is 70606646.

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 64660607 - 2⁶ = 64660543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64660601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16994 + ... + 20447.

It is an arithmetic number, because the mean of its divisors is an integer number (8873754).

Almost surely, 2^64660607 is an apocalyptic number.

64660607 is a deficient number, since it is larger than the sum of its proper divisors (6329425).

64660607 is a wasteful number, since it uses less digits than its factorization.

64660607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37609.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 64660607 is about 8041.1819404861. The cubic root of 64660607 is about 401.3715562914.

The spelling of 64660607 in words is "sixty-four million, six hundred sixty thousand, six hundred seven".