8638880 has 24 divisors (see below), whose sum is σ = 20409732. Its totient is φ = 3455488.

The previous prime is 8638867. The next prime is 8638891. The reversal of 8638880 is 888368.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8042896 + 595984 = 2836^2 + 772^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26837 + ... + 27156.

Almost surely, 2^8638880 is an apocalyptic number.

8638880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8638880 is an abundant number, since it is smaller than the sum of its proper divisors (11770852).

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

8638880 is a wasteful number, since it uses less digits than its factorization.

8638880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54008 (or 54000 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 8638880 is about 2939.1971692964. The cubic root of 8638880 is about 205.1882466761.

It can be divided in two parts, 86388 and 80, that added together give a palindrome (86468).

The spelling of 8638880 in words is "eight million, six hundred thirty-eight thousand, eight hundred eighty".