7887980 has 24 divisors (see below), whose sum is σ = 16663920. Its totient is φ = 3136320.

The previous prime is 7887959. The next prime is 7887989. The reversal of 7887980 is 897887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7887989) 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, 2531 + ... + 4709.

It is an arithmetic number, because the mean of its divisors is an integer number (694330).

Almost surely, 2^7887980 is an apocalyptic number.

It is an amenable number.

7887980 is an abundant number, since it is smaller than the sum of its proper divisors (8775940).

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

7887980 is a wasteful number, since it uses less digits than its factorization.

7887980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369 (or 2367 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 47.

The square root of 7887980 is about 2808.5547884989. The cubic root of 7887980 is about 199.0621086744.

The spelling of 7887980 in words is "seven million, eight hundred eighty-seven thousand, nine hundred eighty".