63892768 has 12 divisors (see below), whose sum is σ = 125788950. Its totient is φ = 31946368.

The previous prime is 63892757. The next prime is 63892793. The reversal of 63892768 is 86729836.

It can be written as a sum of positive squares in only one way, i.e., 62916624 + 976144 = 7932^2 + 988^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998293 + ... + 998356.

Almost surely, 2^63892768 is an apocalyptic number.

It is an amenable number.

63892768 is a deficient number, since it is larger than the sum of its proper divisors (61896182).

63892768 is a wasteful number, since it uses less digits than its factorization.

63892768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996659 (or 1996651 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

The square root of 63892768 is about 7993.2951903455. The cubic root of 63892768 is about 399.7764751148.

The spelling of 63892768 in words is "sixty-three million, eight hundred ninety-two thousand, seven hundred sixty-eight".