964985985 has 24 divisors (see below), whose sum is σ = 1673455680. Its totient is φ = 514408992.

The previous prime is 964985947. The next prime is 964985993. The reversal of 964985985 is 589589469.

964985985 is a `hidden beast` number, since 96 + 498 + 59 + 8 + 5 = 666.

It is not a de Polignac number, because 964985985 - 2⁸ = 964985729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123052 + ... + 130658.

It is an arithmetic number, because the mean of its divisors is an integer number (69727320).

Almost surely, 2^964985985 is an apocalyptic number.

It is an amenable number.

964985985 is a deficient number, since it is larger than the sum of its proper divisors (708469695).

964985985 is a wasteful number, since it uses less digits than its factorization.

964985985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10437 (or 10434 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 63.

The square root of 964985985 is about 31064.2235537926. The cubic root of 964985985 is about 988.1897282568.

The spelling of 964985985 in words is "nine hundred sixty-four million, nine hundred eighty-five thousand, nine hundred eighty-five".