7959880 has 16 divisors (see below), whose sum is σ = 17909820. Its totient is φ = 3183936.

The previous prime is 7959871. The next prime is 7959883. The reversal of 7959880 is 889597.

It can be written as a sum of positive squares in 2 ways, for example, as 7257636 + 702244 = 2694^2 + 838^2 .

It is a super-2 number, since 2×7959880² = 126719379228800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7959880.

It is not an unprimeable number, because it can be changed into a prime (7959883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99459 + ... + 99538.

Almost surely, 2^7959880 is an apocalyptic number.

It is an amenable number.

7959880 is an abundant number, since it is smaller than the sum of its proper divisors (9949940).

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

7959880 is a wasteful number, since it uses less digits than its factorization.

7959880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199008 (or 199004 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 7959880 is about 2821.3259294169. The cubic root of 7959880 is about 199.6651062104.

The spelling of 7959880 in words is "seven million, nine hundred fifty-nine thousand, eight hundred eighty".