64463013 has 16 divisors (see below), whose sum is σ = 95726400. Its totient is φ = 42873840.

The previous prime is 64462961. The next prime is 64463023. The reversal of 64463013 is 31036446.

64463013 is a `hidden beast` number, since 644 + 6 + 3 + 0 + 13 = 666.

It is not a de Polignac number, because 64463013 - 2⁶ = 64462949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64463023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9858 + ... + 15036.

It is an arithmetic number, because the mean of its divisors is an integer number (5982900).

Almost surely, 2^64463013 is an apocalyptic number.

It is an amenable number.

64463013 is a deficient number, since it is larger than the sum of its proper divisors (31263387).

64463013 is a wasteful number, since it uses less digits than its factorization.

64463013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5649 (or 5643 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 64463013 is about 8028.8861618533. The cubic root of 64463013 is about 400.9622935381.

Adding to 64463013 its reverse (31036446), we get a palindrome (95499459).

The spelling of 64463013 in words is "sixty-four million, four hundred sixty-three thousand, thirteen".