679199 has 4 divisors (see below), whose sum is σ = 681240. Its totient is φ = 677160.

The previous prime is 679183. The next prime is 679207. The reversal of 679199 is 991976.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 679199 - 2⁴ = 679183 is a prime.

It is a super-2 number, since 2×679199² = 922622563202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 679199.

It is not an unprimeable number, because it can be changed into a prime (679169) 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, 392 + ... + 1229.

It is an arithmetic number, because the mean of its divisors is an integer number (170310).

2⁶⁷⁹¹⁹⁹ is an apocalyptic number.

679199 is a deficient number, since it is larger than the sum of its proper divisors (2041).

679199 is a wasteful number, since it uses less digits than its factorization.

679199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040.

The product of its digits is 30618, while the sum is 41.

The square root of 679199 is about 824.1353044252. The cubic root of 679199 is about 87.9020518322.

It can be divided in two parts, 679 and 199, that added together give a palindrome (878).

The spelling of 679199 in words is "six hundred seventy-nine thousand, one hundred ninety-nine".