64459863 has 12 divisors (see below), whose sum is σ = 100271080. Its totient is φ = 39667536.

The previous prime is 64459861. The next prime is 64459891. The reversal of 64459863 is 36895446.

It is not a de Polignac number, because 64459863 - 2¹ = 64459861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64459861) 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, 275353 + ... + 275586.

Almost surely, 2^64459863 is an apocalyptic number.

64459863 is a deficient number, since it is larger than the sum of its proper divisors (35811217).

64459863 is a wasteful number, since it uses less digits than its factorization.

64459863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550958 (or 550955 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 64459863 is about 8028.6899927697. The cubic root of 64459863 is about 400.9557623934.

The spelling of 64459863 in words is "sixty-four million, four hundred fifty-nine thousand, eight hundred sixty-three".