679601 has 8 divisors (see below), whose sum is σ = 744744. Its totient is φ = 616320.

The previous prime is 679597. The next prime is 679603. The reversal of 679601 is 106976.

679601 = 149² + 150² + ... + 174².

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15376 + 664225 = 124^2 + 815^2 .

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 679601 - 2² = 679597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365 + ... + 1221.

It is an arithmetic number, because the mean of its divisors is an integer number (93093).

2⁶⁷⁹⁶⁰¹ is an apocalyptic number.

679601 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

679601 is a deficient number, since it is larger than the sum of its proper divisors (65143).

679601 is a wasteful number, since it uses less digits than its factorization.

679601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 679601 is about 824.3791603383. The cubic root of 679601 is about 87.9193907149.

The spelling of 679601 in words is "six hundred seventy-nine thousand, six hundred one".