63993117 has 8 divisors (see below), whose sum is σ = 90343296. Its totient is φ = 40152512.

The previous prime is 63993113. The next prime is 63993119. The reversal of 63993117 is 71139936.

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

It is a cyclic number.

It is not a de Polignac number, because 63993117 - 2² = 63993113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63993113) 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, 627333 + ... + 627434.

It is an arithmetic number, because the mean of its divisors is an integer number (11292912).

Almost surely, 2^63993117 is an apocalyptic number.

It is an amenable number.

63993117 is a deficient number, since it is larger than the sum of its proper divisors (26350179).

63993117 is a wasteful number, since it uses less digits than its factorization.

63993117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254787.

The product of its digits is 30618, while the sum is 39.

The square root of 63993117 is about 7999.5698009330. The cubic root of 63993117 is about 399.9856599026.

The spelling of 63993117 in words is "sixty-three million, nine hundred ninety-three thousand, one hundred seventeen".