63471994 has 16 divisors (see below), whose sum is σ = 96235776. Its totient is φ = 31395600.

The previous prime is 63471979. The next prime is 63472001. The reversal of 63471994 is 49917436.

It is a self number, because there is not a number n which added to its sum of digits gives 63471994.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97779 + ... + 98425.

It is an arithmetic number, because the mean of its divisors is an integer number (6014736).

Almost surely, 2^63471994 is an apocalyptic number.

63471994 is a deficient number, since it is larger than the sum of its proper divisors (32763782).

63471994 is a wasteful number, since it uses less digits than its factorization.

63471994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101.

The product of its digits is 163296, while the sum is 43.

The square root of 63471994 is about 7966.9312787296. The cubic root of 63471994 is about 398.8969484895.

The spelling of 63471994 in words is "sixty-three million, four hundred seventy-one thousand, nine hundred ninety-four".