7868992 has 14 divisors (see below), whose sum is σ = 15615158. Its totient is φ = 3934464.

The previous prime is 7868969. The next prime is 7868999. The reversal of 7868992 is 2998687.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7750656 + 118336 = 2784^2 + 344^2 .

It is not an unprimeable number, because it can be changed into a prime (7868999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61413 + ... + 61540.

Almost surely, 2^7868992 is an apocalyptic number.

It is an amenable number.

7868992 is a deficient number, since it is larger than the sum of its proper divisors (7746166).

7868992 is a wasteful number, since it uses less digits than its factorization.

7868992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122965 (or 122955 counting only the distinct ones).

The product of its digits is 435456, while the sum is 49.

The square root of 7868992 is about 2805.1723654706. The cubic root of 7868992 is about 198.9022524418.

The spelling of 7868992 in words is "seven million, eight hundred sixty-eight thousand, nine hundred ninety-two".