679693189 has 8 divisors (see below), whose sum is σ = 784334720. Its totient is φ = 576937296.

The previous prime is 679693177. The next prime is 679693207. The reversal of 679693189 is 981396976.

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

It is a cyclic number.

It is not a de Polignac number, because 679693189 - 2¹⁹ = 679168901 is a prime.

It is a super-4 number, since 4×679693189⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679693109) 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, 470634 + ... + 472075.

It is an arithmetic number, because the mean of its divisors is an integer number (98041840).

Almost surely, 2^679693189 is an apocalyptic number.

It is an amenable number.

679693189 is a deficient number, since it is larger than the sum of its proper divisors (104641531).

679693189 is a wasteful number, since it uses less digits than its factorization.

679693189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942819.

The product of its digits is 4408992, while the sum is 58.

The square root of 679693189 is about 26070.9261247083. The cubic root of 679693189 is about 879.2336600547.

The spelling of 679693189 in words is "six hundred seventy-nine million, six hundred ninety-three thousand, one hundred eighty-nine".