63816464 has 20 divisors (see below), whose sum is σ = 123856656. Its totient is φ = 31853472.

The previous prime is 63816463. The next prime is 63816503. The reversal of 63816464 is 46461836.

It is not an unprimeable number, because it can be changed into a prime (63816463) 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, 7187 + ... + 13389.

Almost surely, 2^63816464 is an apocalyptic number.

It is an amenable number.

63816464 is a deficient number, since it is larger than the sum of its proper divisors (60040192).

63816464 is a wasteful number, since it uses less digits than its factorization.

63816464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6854 (or 6848 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 63816464 is about 7988.5207641966. The cubic root of 63816464 is about 399.6172672392.

The spelling of 63816464 in words is "sixty-three million, eight hundred sixteen thousand, four hundred sixty-four".