679677189 has 16 divisors (see below), whose sum is σ = 924583680. Its totient is φ = 444000960.

The previous prime is 679677181. The next prime is 679677191. The reversal of 679677189 is 981776976.

It is a happy number.

It is not a de Polignac number, because 679677189 - 2³ = 679677181 is a prime.

It is a super-2 number, since 2×679677189² = 923922162493883442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679677181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42324 + ... + 56130.

It is an arithmetic number, because the mean of its divisors is an integer number (57786480).

Almost surely, 2^679677189 is an apocalyptic number.

It is an amenable number.

679677189 is a deficient number, since it is larger than the sum of its proper divisors (244906491).

679677189 is a wasteful number, since it uses less digits than its factorization.

679677189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14140.

The product of its digits is 8001504, while the sum is 60.

The square root of 679677189 is about 26070.6192676737. The cubic root of 679677189 is about 879.2267609375.

The spelling of 679677189 in words is "six hundred seventy-nine million, six hundred seventy-seven thousand, one hundred eighty-nine".