64652765 has 8 divisors (see below), whose sum is σ = 77859168. Its totient is φ = 51538320.

The previous prime is 64652743. The next prime is 64652771. The reversal of 64652765 is 56725646.

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

It is not a de Polignac number, because 64652765 - 2¹² = 64648669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21431 + ... + 24260.

It is an arithmetic number, because the mean of its divisors is an integer number (9732396).

Almost surely, 2^64652765 is an apocalyptic number.

It is an amenable number.

64652765 is a deficient number, since it is larger than the sum of its proper divisors (13206403).

64652765 is a wasteful number, since it uses less digits than its factorization.

64652765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45979.

The product of its digits is 302400, while the sum is 41.

The square root of 64652765 is about 8040.6943108167. The cubic root of 64652765 is about 401.3553296008.

The spelling of 64652765 in words is "sixty-four million, six hundred fifty-two thousand, seven hundred sixty-five".