64576763 has 12 divisors (see below), whose sum is σ = 69832728. Its totient is φ = 59672160.

The previous prime is 64576753. The next prime is 64576781. The reversal of 64576763 is 36767546.

It is not a de Polignac number, because 64576763 - 2¹² = 64572667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64576703) 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, 12620 + ... + 16982.

It is an arithmetic number, because the mean of its divisors is an integer number (5819394).

Almost surely, 2^64576763 is an apocalyptic number.

64576763 is a deficient number, since it is larger than the sum of its proper divisors (5255965).

64576763 is a wasteful number, since it uses less digits than its factorization.

64576763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4442 (or 4423 counting only the distinct ones).

The product of its digits is 635040, while the sum is 44.

The square root of 64576763 is about 8035.9668366663. The cubic root of 64576763 is about 401.1979980033.

The spelling of 64576763 in words is "sixty-four million, five hundred seventy-six thousand, seven hundred sixty-three".