679391589 has 8 divisors (see below), whose sum is σ = 915194560. Its totient is φ = 448258176.

The previous prime is 679391563. The next prime is 679391597. The reversal of 679391589 is 985193976.

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

It is not a de Polignac number, because 679391589 - 2⁸ = 679391333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679391539) 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, 1167049 + ... + 1167630.

It is an arithmetic number, because the mean of its divisors is an integer number (114399320).

Almost surely, 2^679391589 is an apocalyptic number.

It is an amenable number.

679391589 is a deficient number, since it is larger than the sum of its proper divisors (235802971).

679391589 is a wasteful number, since it uses less digits than its factorization.

679391589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334779.

The product of its digits is 3674160, while the sum is 57.

The square root of 679391589 is about 26065.1412618463. The cubic root of 679391589 is about 879.1035934756.

The spelling of 679391589 in words is "six hundred seventy-nine million, three hundred ninety-one thousand, five hundred eighty-nine".