7668878 has 16 divisors (see below), whose sum is σ = 13453440. Its totient is φ = 3209976.

The previous prime is 7668877. The next prime is 7668883. The reversal of 7668878 is 8788667.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7668877) 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, 5768 + ... + 6971.

It is an arithmetic number, because the mean of its divisors is an integer number (840840).

Almost surely, 2^7668878 is an apocalyptic number.

7668878 is a deficient number, since it is larger than the sum of its proper divisors (5784562).

7668878 is a wasteful number, since it uses less digits than its factorization.

7668878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12791.

The product of its digits is 903168, while the sum is 50.

The square root of 7668878 is about 2769.2739120571. The cubic root of 7668878 is about 197.2016796196.

The spelling of 7668878 in words is "seven million, six hundred sixty-eight thousand, eight hundred seventy-eight".