63745938 has 12 divisors (see below), whose sum is σ = 138116238. Its totient is φ = 21248640.

The previous prime is 63745933. The next prime is 63745961. The reversal of 63745938 is 83954736.

63745938 is a `hidden beast` number, since 637 + 4 + 5 + 9 + 3 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51022449 + 12723489 = 7143^2 + 3567^2 .

It is a super-2 number, since 2×63745938² = 8127089222999688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63745893 and 63745902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63745933) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1770703 + ... + 1770738.

Almost surely, 2^63745938 is an apocalyptic number.

63745938 is an abundant number, since it is smaller than the sum of its proper divisors (74370300).

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

63745938 is a wasteful number, since it uses less digits than its factorization.

63745938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3541449 (or 3541446 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 63745938 is about 7984.1053349765. The cubic root of 63745938 is about 399.4700022327.

The spelling of 63745938 in words is "sixty-three million, seven hundred forty-five thousand, nine hundred thirty-eight".