7698666 has 8 divisors (see below), whose sum is σ = 15397344. Its totient is φ = 2566220.

The previous prime is 7698643. The next prime is 7698679. The reversal of 7698666 is 6668967.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

7698666 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641550 + ... + 641561.

It is an arithmetic number, because the mean of its divisors is an integer number (1924668).

Almost surely, 2^7698666 is an apocalyptic number.

7698666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7698666 is a wasteful number, since it uses less digits than its factorization.

7698666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283116.

The product of its digits is 653184, while the sum is 48.

The square root of 7698666 is about 2774.6470045755. The cubic root of 7698666 is about 197.4566779946.

The spelling of 7698666 in words is "seven million, six hundred ninety-eight thousand, six hundred sixty-six".