64929263 has 12 divisors (see below), whose sum is σ = 76081320. Its totient is φ = 55247472.

The previous prime is 64929259. The next prime is 64929301. The reversal of 64929263 is 36292946.

It is not a de Polignac number, because 64929263 - 2² = 64929259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64929263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64929203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2045 + ... + 11577.

It is an arithmetic number, because the mean of its divisors is an integer number (6340110).

Almost surely, 2^64929263 is an apocalyptic number.

64929263 is a deficient number, since it is larger than the sum of its proper divisors (11152057).

64929263 is a wasteful number, since it uses less digits than its factorization.

64929263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9686 (or 9679 counting only the distinct ones).

The product of its digits is 139968, while the sum is 41.

The square root of 64929263 is about 8057.8696316086. The cubic root of 64929263 is about 401.9266695447.

The spelling of 64929263 in words is "sixty-four million, nine hundred twenty-nine thousand, two hundred sixty-three".