679697 has 4 divisors (see below), whose sum is σ = 686400. Its totient is φ = 672996.

The previous prime is 679691. The next prime is 679699. The reversal of 679697 is 796976.

679697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 679697 - 2⁴ = 679681 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (679691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3197 + ... + 3402.

It is an arithmetic number, because the mean of its divisors is an integer number (171600).

2⁶⁷⁹⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

679697 is a deficient number, since it is larger than the sum of its proper divisors (6703).

679697 is a wasteful number, since it uses less digits than its factorization.

679697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6702.

The product of its digits is 142884, while the sum is 44.

The square root of 679697 is about 824.4373839171. The cubic root of 679697 is about 87.9235303322.

It can be divided in two parts, 67969 and 7, that added together give a palindrome (67976).

The spelling of 679697 in words is "six hundred seventy-nine thousand, six hundred ninety-seven".