63763928 has 8 divisors (see below), whose sum is σ = 119557380. Its totient is φ = 31881960.

The previous prime is 63763927. The next prime is 63763933. The reversal of 63763928 is 82936736.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63763927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3985238 + ... + 3985253.

Almost surely, 2^63763928 is an apocalyptic number.

It is an amenable number.

63763928 is a deficient number, since it is larger than the sum of its proper divisors (55793452).

63763928 is a wasteful number, since it uses less digits than its factorization.

63763928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7970497 (or 7970493 counting only the distinct ones).

The product of its digits is 326592, while the sum is 44.

The square root of 63763928 is about 7985.2318688940. The cubic root of 63763928 is about 399.5075773820.

The spelling of 63763928 in words is "sixty-three million, seven hundred sixty-three thousand, nine hundred twenty-eight".