63938331 has 12 divisors (see below), whose sum is σ = 94851952. Its totient is φ = 41473296.

The previous prime is 63938323. The next prime is 63938351. The reversal of 63938331 is 13383936.

It is not a de Polignac number, because 63938331 - 2³ = 63938323 is a prime.

It is a super-2 number, since 2×63938331² = 8176220342131122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63938351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95671 + ... + 96336.

Almost surely, 2^63938331 is an apocalyptic number.

63938331 is a deficient number, since it is larger than the sum of its proper divisors (30913621).

63938331 is a wasteful number, since it uses less digits than its factorization.

63938331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192050 (or 192047 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 63938331 is about 7996.1447585696. The cubic root of 63938331 is about 399.8714816287.

The spelling of 63938331 in words is "sixty-three million, nine hundred thirty-eight thousand, three hundred thirty-one".