63388516 has 24 divisors (see below), whose sum is σ = 114367680. Its totient is φ = 30727200.

The previous prime is 63388513. The next prime is 63388517. The reversal of 63388516 is 61588336.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (63388513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15495 + ... + 19153.

It is an arithmetic number, because the mean of its divisors is an integer number (4765320).

Almost surely, 2^63388516 is an apocalyptic number.

It is an amenable number.

63388516 is a deficient number, since it is larger than the sum of its proper divisors (50979164).

63388516 is a wasteful number, since it uses less digits than its factorization.

63388516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3795 (or 3793 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 63388516 is about 7961.6905240031. The cubic root of 63388516 is about 398.7219961138.

The spelling of 63388516 in words is "sixty-three million, three hundred eighty-eight thousand, five hundred sixteen".