63503994 has 16 divisors (see below), whose sum is σ = 127372032. Its totient is φ = 21107328.

The previous prime is 63503987. The next prime is 63504011. The reversal of 63503994 is 49930536.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12874 + ... + 17109.

It is an arithmetic number, because the mean of its divisors is an integer number (7960752).

Almost surely, 2^63503994 is an apocalyptic number.

63503994 is an abundant number, since it is smaller than the sum of its proper divisors (63868038).

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

63503994 is a wasteful number, since it uses less digits than its factorization.

63503994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30341.

The product of its (nonzero) digits is 87480, while the sum is 39.

The square root of 63503994 is about 7968.9393271627. The cubic root of 63503994 is about 398.9639731041.

The spelling of 63503994 in words is "sixty-three million, five hundred three thousand, nine hundred ninety-four".