7909868 has 12 divisors (see below), whose sum is σ = 13972392. Its totient is φ = 3917760.

The previous prime is 7909859. The next prime is 7909873. The reversal of 7909868 is 8689097.

It is a super-3 number, since 3×7909868³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8813 + ... + 9668.

It is an arithmetic number, because the mean of its divisors is an integer number (1164366).

Almost surely, 2^7909868 is an apocalyptic number.

It is an amenable number.

7909868 is a deficient number, since it is larger than the sum of its proper divisors (6062524).

7909868 is a wasteful number, since it uses less digits than its factorization.

7909868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18592 (or 18590 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 7909868 is about 2812.4487550887. The cubic root of 7909868 is about 199.2460614547.

The spelling of 7909868 in words is "seven million, nine hundred nine thousand, eight hundred sixty-eight".