63319994 has 8 divisors (see below), whose sum is σ = 97188960. Its totient is φ = 30923676.

The previous prime is 63319973. The next prime is 63319999. The reversal of 63319994 is 49991336.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (63319999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368054 + ... + 368225.

It is an arithmetic number, because the mean of its divisors is an integer number (12148620).

Almost surely, 2^63319994 is an apocalyptic number.

63319994 is a deficient number, since it is larger than the sum of its proper divisors (33868966).

63319994 is a wasteful number, since it uses less digits than its factorization.

63319994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736324.

The product of its digits is 157464, while the sum is 44.

The square root of 63319994 is about 7957.3861286229. The cubic root of 63319994 is about 398.5782735551.

The spelling of 63319994 in words is "sixty-three million, three hundred nineteen thousand, nine hundred ninety-four".