679902111 has 24 divisors (see below), whose sum is σ = 1148484480. Its totient is φ = 379478736.

The previous prime is 679902109. The next prime is 679902151. The reversal of 679902111 is 111209976.

It is not a de Polignac number, because 679902111 - 2¹ = 679902109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679902101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122781 + ... + 128198.

It is an arithmetic number, because the mean of its divisors is an integer number (47853520).

Almost surely, 2^679902111 is an apocalyptic number.

679902111 is a deficient number, since it is larger than the sum of its proper divisors (468582369).

679902111 is a wasteful number, since it uses less digits than its factorization.

679902111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251035 (or 251032 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 679902111 is about 26074.9326173626. The cubic root of 679902111 is about 879.3237362048.

The spelling of 679902111 in words is "six hundred seventy-nine million, nine hundred two thousand, one hundred eleven".