63880135 has 24 divisors (see below), whose sum is σ = 89229168. Its totient is φ = 43718400.

The previous prime is 63880133. The next prime is 63880139. The reversal of 63880135 is 53108836.

It is a happy number.

It is not a de Polignac number, because 63880135 - 2¹ = 63880133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63880135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63880133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7180 + ... + 13390.

It is an arithmetic number, because the mean of its divisors is an integer number (3717882).

Almost surely, 2^63880135 is an apocalyptic number.

63880135 is a deficient number, since it is larger than the sum of its proper divisors (25349033).

63880135 is a wasteful number, since it uses less digits than its factorization.

63880135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6255 (or 6244 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 63880135 is about 7992.5049264921. The cubic root of 63880135 is about 399.7501251890.

It can be divided in two parts, 638801 and 35, that added together give a palindrome (638836).

The spelling of 63880135 in words is "sixty-three million, eight hundred eighty thousand, one hundred thirty-five".