63217964 has 6 divisors (see below), whose sum is σ = 110631444. Its totient is φ = 31608980.

The previous prime is 63217949. The next prime is 63217981. The reversal of 63217964 is 46971236.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7902242 + ... + 7902249.

It is an arithmetic number, because the mean of its divisors is an integer number (18438574).

Almost surely, 2^63217964 is an apocalyptic number.

It is an amenable number.

63217964 is a deficient number, since it is larger than the sum of its proper divisors (47413480).

63217964 is a wasteful number, since it uses less digits than its factorization.

63217964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15804495 (or 15804493 counting only the distinct ones).

The product of its digits is 54432, while the sum is 38.

The square root of 63217964 is about 7950.9725191325. The cubic root of 63217964 is about 398.3640768430.

The spelling of 63217964 in words is "sixty-three million, two hundred seventeen thousand, nine hundred sixty-four".