8115880 has 32 divisors (see below), whose sum is σ = 18406440. Its totient is φ = 3220480.

The previous prime is 8115857. The next prime is 8115883. The reversal of 8115880 is 885118.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6543364 + 1572516 = 2558^2 + 1254^2 .

It is not an unprimeable number, because it can be changed into a prime (8115883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4740 + ... + 6220.

Almost surely, 2^8115880 is an apocalyptic number.

It is an amenable number.

8115880 is an abundant number, since it is smaller than the sum of its proper divisors (10290560).

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

8115880 is a wasteful number, since it uses less digits than its factorization.

8115880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629 (or 1625 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 8115880 is about 2848.8383597530. The cubic root of 8115880 is about 200.9610412683.

The spelling of 8115880 in words is "eight million, one hundred fifteen thousand, eight hundred eighty".