9864964931 has 4 divisors (see below), whose sum is σ = 9865914864. Its totient is φ = 9864015000.

The previous prime is 9864964913. The next prime is 9864964979. The reversal of 9864964931 is 1394694689.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9864964931 is a prime.

It is a super-2 number, since 2×9864964931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9864964631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459215 + ... + 480216.

It is an arithmetic number, because the mean of its divisors is an integer number (2466478716).

Almost surely, 2^9864964931 is an apocalyptic number.

9864964931 is a deficient number, since it is larger than the sum of its proper divisors (949933).

9864964931 is a wasteful number, since it uses less digits than its factorization.

9864964931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949932.

The product of its digits is 10077696, while the sum is 59.

The square root of 9864964931 is about 99322.5298258155. The cubic root of 9864964931 is about 2144.6932350556.

The spelling of 9864964931 in words is "nine billion, eight hundred sixty-four million, nine hundred sixty-four thousand, nine hundred thirty-one".