63903138 has 16 divisors (see below), whose sum is σ = 137637696. Its totient is φ = 19662480.

The previous prime is 63903113. The next prime is 63903163. The reversal of 63903138 is 83130936.

It is an interprime number because it is at equal distance from previous prime (63903113) and next prime (63903163).

It is a super-2 number, since 2×63903138² = 8167222092494088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63903099 and 63903108.

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, 409558 + ... + 409713.

It is an arithmetic number, because the mean of its divisors is an integer number (8602356).

Almost surely, 2^63903138 is an apocalyptic number.

63903138 is an abundant number, since it is smaller than the sum of its proper divisors (73734558).

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

63903138 is a wasteful number, since it uses less digits than its factorization.

63903138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819289.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 63903138 is about 7993.9438326773. The cubic root of 63903138 is about 399.7981022771.

The spelling of 63903138 in words is "sixty-three million, nine hundred three thousand, one hundred thirty-eight".