64560963 has 6 divisors (see below), whose sum is σ = 86099844. Its totient is φ = 43031364.

The previous prime is 64560961. The next prime is 64560971. The reversal of 64560963 is 36906546.

It is a happy number.

It is not a de Polignac number, because 64560963 - 2¹ = 64560961 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 11598 + ... + 16236.

It is an arithmetic number, because the mean of its divisors is an integer number (14349974).

Almost surely, 2^64560963 is an apocalyptic number.

64560963 is a deficient number, since it is larger than the sum of its proper divisors (21538881).

64560963 is an frugal number, since it uses more digits than its factorization.

64560963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9281 (or 4642 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 64560963 is about 8034.9836963120. The cubic root of 64560963 is about 401.1652749559.

The spelling of 64560963 in words is "sixty-four million, five hundred sixty thousand, nine hundred sixty-three".