63438875 has 16 divisors (see below), whose sum is σ = 79719744. Its totient is φ = 50400000.

The previous prime is 63438839. The next prime is 63438877. The reversal of 63438875 is 57883436.

It is not a de Polignac number, because 63438875 - 2⁸ = 63438619 is a prime.

It is a super-2 number, since 2×63438875² = 8048981722531250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63438877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17195 + ... + 20555.

It is an arithmetic number, because the mean of its divisors is an integer number (4982484).

Almost surely, 2^63438875 is an apocalyptic number.

63438875 is a deficient number, since it is larger than the sum of its proper divisors (16280869).

63438875 is a wasteful number, since it uses less digits than its factorization.

63438875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3527 (or 3517 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 63438875 is about 7964.8524782321. The cubic root of 63438875 is about 398.8275563809.

The spelling of 63438875 in words is "sixty-three million, four hundred thirty-eight thousand, eight hundred seventy-five".