699696668 has 12 divisors (see below), whose sum is σ = 1335784632. Its totient is φ = 318043920.

The previous prime is 699696653. The next prime is 699696713. The reversal of 699696668 is 866696996.

It is a happy number.

It is a congruent number.

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, 7951055 + ... + 7951142.

It is an arithmetic number, because the mean of its divisors is an integer number (111315386).

Almost surely, 2^699696668 is an apocalyptic number.

It is an amenable number.

699696668 is a deficient number, since it is larger than the sum of its proper divisors (636087964).

699696668 is a wasteful number, since it uses less digits than its factorization.

699696668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15902212 (or 15902210 counting only the distinct ones).

The product of its digits is 45349632, while the sum is 65.

The square root of 699696668 is about 26451.7800535238. The cubic root of 699696668 is about 887.7757309764.

The spelling of 699696668 in words is "six hundred ninety-nine million, six hundred ninety-six thousand, six hundred sixty-eight".