679871361 has 32 divisors (see below), whose sum is σ = 1039046400. Its totient is φ = 391716864.

The previous prime is 679871347. The next prime is 679871371. The reversal of 679871361 is 163178976.

It is a happy number.

It is not a de Polignac number, because 679871361 - 2¹⁰ = 679870337 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 679871361.

It is not an unprimeable number, because it can be changed into a prime (679871371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129361 + ... + 134513.

It is an arithmetic number, because the mean of its divisors is an integer number (32470200).

Almost surely, 2^679871361 is an apocalyptic number.

It is an amenable number.

679871361 is a deficient number, since it is larger than the sum of its proper divisors (359175039).

679871361 is a wasteful number, since it uses less digits than its factorization.

679871361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5385.

The product of its digits is 381024, while the sum is 48.

The square root of 679871361 is about 26074.3429639176. The cubic root of 679871361 is about 879.3104795844.

The spelling of 679871361 in words is "six hundred seventy-nine million, eight hundred seventy-one thousand, three hundred sixty-one".