64680965 has 8 divisors (see below), whose sum is σ = 78343200. Its totient is φ = 51260752.

The previous prime is 64680953. The next prime is 64680983. The reversal of 64680965 is 56908646.

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 64680965 - 2⁴ = 64680949 is a prime.

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, 59915 + ... + 60984.

It is an arithmetic number, because the mean of its divisors is an integer number (9792900).

Almost surely, 2^64680965 is an apocalyptic number.

It is an amenable number.

64680965 is a deficient number, since it is larger than the sum of its proper divisors (13662235).

64680965 is a wasteful number, since it uses less digits than its factorization.

64680965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121011.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 64680965 is about 8042.4476995502. The cubic root of 64680965 is about 401.4136750050.

The spelling of 64680965 in words is "sixty-four million, six hundred eighty thousand, nine hundred sixty-five".