64764463 has 4 divisors (see below), whose sum is σ = 65986488. Its totient is φ = 63542440.

The previous prime is 64764451. The next prime is 64764473. The reversal of 64764463 is 36446746.

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

It is a cyclic number.

It is not a de Polignac number, because 64764463 - 2¹⁷ = 64633391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64764473) 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, 610933 + ... + 611038.

It is an arithmetic number, because the mean of its divisors is an integer number (16496622).

Almost surely, 2^64764463 is an apocalyptic number.

64764463 is a deficient number, since it is larger than the sum of its proper divisors (1222025).

64764463 is a wasteful number, since it uses less digits than its factorization.

64764463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222024.

The product of its digits is 290304, while the sum is 40.

The square root of 64764463 is about 8047.6371066295. The cubic root of 64764463 is about 401.5863318120.

The spelling of 64764463 in words is "sixty-four million, seven hundred sixty-four thousand, four hundred sixty-three".