63971875 has 24 divisors (see below), whose sum is σ = 87275664. Its totient is φ = 46500000.

The previous prime is 63971863. The next prime is 63971881. The reversal of 63971875 is 57817936.

It is not a de Polignac number, because 63971875 - 2⁹ = 63971363 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33445 + ... + 35305.

It is an arithmetic number, because the mean of its divisors is an integer number (3636486).

Almost surely, 2^63971875 is an apocalyptic number.

63971875 is a deficient number, since it is larger than the sum of its proper divisors (23303789).

63971875 is an equidigital number, since it uses as much as digits as its factorization.

63971875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897 (or 1877 counting only the distinct ones).

The product of its digits is 317520, while the sum is 46.

The square root of 63971875 is about 7998.2419943385. The cubic root of 63971875 is about 399.9413976648.

It can be divided in two parts, 63971 and 875, that added together give a palindrome (64846).

The spelling of 63971875 in words is "sixty-three million, nine hundred seventy-one thousand, eight hundred seventy-five".