64463479 has 4 divisors (see below), whose sum is σ = 64513600. Its totient is φ = 64413360.

The previous prime is 64463471. The next prime is 64463489. The reversal of 64463479 is 97436446.

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 64463479 - 2³ = 64463471 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 (64463471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23079 + ... + 25720.

It is an arithmetic number, because the mean of its divisors is an integer number (16128400).

Almost surely, 2^64463479 is an apocalyptic number.

64463479 is a deficient number, since it is larger than the sum of its proper divisors (50121).

64463479 is a wasteful number, since it uses less digits than its factorization.

64463479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50120.

The product of its digits is 435456, while the sum is 43.

The square root of 64463479 is about 8028.9151820156. The cubic root of 64463479 is about 400.9632597148.

The spelling of 64463479 in words is "sixty-four million, four hundred sixty-three thousand, four hundred seventy-nine".