679581607 has 8 divisors (see below), whose sum is σ = 717305600. Its totient is φ = 642053304.

The previous prime is 679581593. The next prime is 679581689. The reversal of 679581607 is 706185976.

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 679581607 - 2¹¹ = 679579559 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 (679581697) 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, 41757 + ... + 55702.

It is an arithmetic number, because the mean of its divisors is an integer number (89663200).

Almost surely, 2^679581607 is an apocalyptic number.

679581607 is a deficient number, since it is larger than the sum of its proper divisors (37723993).

679581607 is a wasteful number, since it uses less digits than its factorization.

679581607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97845.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 679581607 is about 26068.7860668655. The cubic root of 679581607 is about 879.1855442180.

The spelling of 679581607 in words is "six hundred seventy-nine million, five hundred eighty-one thousand, six hundred seven".