64560965 has 16 divisors (see below), whose sum is σ = 88905600. Its totient is φ = 44088000.

The previous prime is 64560961. The next prime is 64560971. The reversal of 64560965 is 56906546.

64560965 = 4638² + 4639² + 4640².

It is not a de Polignac number, because 64560965 - 2² = 64560961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64560961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5111 + ... + 12459.

It is an arithmetic number, because the mean of its divisors is an integer number (5556600).

Almost surely, 2^64560965 is an apocalyptic number.

It is an amenable number.

64560965 is a deficient number, since it is larger than the sum of its proper divisors (24344635).

64560965 is a wasteful number, since it uses less digits than its factorization.

64560965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7612.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 64560965 is about 8034.9838207678. The cubic root of 64560965 is about 401.1652790984.

The spelling of 64560965 in words is "sixty-four million, five hundred sixty thousand, nine hundred sixty-five".