7868780 has 24 divisors (see below), whose sum is σ = 16683408. Its totient is φ = 3117248.

The previous prime is 7868779. The next prime is 7868789. The reversal of 7868780 is 878687.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7868789) 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, 302 + ... + 3978.

It is an arithmetic number, because the mean of its divisors is an integer number (695142).

Almost surely, 2^7868780 is an apocalyptic number.

It is an amenable number.

7868780 is an abundant number, since it is smaller than the sum of its proper divisors (8814628).

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

7868780 is a wasteful number, since it uses less digits than its factorization.

7868780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793 (or 3791 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 7868780 is about 2805.1345778768. The cubic root of 7868780 is about 198.9004662047.

The spelling of 7868780 in words is "seven million, eight hundred sixty-eight thousand, seven hundred eighty".