63789516 has 36 divisors (see below), whose sum is σ = 184281552. Its totient is φ = 18225504.

The previous prime is 63789503. The next prime is 63789527. The reversal of 63789516 is 61598736.

It is a happy number.

63789516 is a `hidden beast` number, since 63 + 78 + 9 + 516 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126315 + ... + 126818.

It is an arithmetic number, because the mean of its divisors is an integer number (5118932).

Almost surely, 2^63789516 is an apocalyptic number.

It is an amenable number.

63789516 is an abundant number, since it is smaller than the sum of its proper divisors (120492036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63789516 is a wasteful number, since it uses less digits than its factorization.

63789516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253150 (or 253145 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 63789516 is about 7986.8339158893. The cubic root of 63789516 is about 399.5610100625.

The spelling of 63789516 in words is "sixty-three million, seven hundred eighty-nine thousand, five hundred sixteen".