64463864 has 16 divisors (see below), whose sum is σ = 127980000. Its totient is φ = 30335872.

The previous prime is 64463831. The next prime is 64463873. The reversal of 64463864 is 46836446.

It is a congruent number.

It is an unprimeable number.

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, 236864 + ... + 237135.

It is an arithmetic number, because the mean of its divisors is an integer number (7998750).

Almost surely, 2^64463864 is an apocalyptic number.

It is an amenable number.

64463864 is a deficient number, since it is larger than the sum of its proper divisors (63516136).

64463864 is a wasteful number, since it uses less digits than its factorization.

64463864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474022 (or 474018 counting only the distinct ones).

The product of its digits is 331776, while the sum is 41.

The square root of 64463864 is about 8028.9391578215. The cubic root of 64463864 is about 400.9640579473.

The spelling of 64463864 in words is "sixty-four million, four hundred sixty-three thousand, eight hundred sixty-four".