679790 has 8 divisors (see below), whose sum is σ = 1223640. Its totient is φ = 271912.

The previous prime is 679781. The next prime is 679793. The reversal of 679790 is 97976.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×679790³ = 942422333864217000, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33980 + ... + 33999.

It is an arithmetic number, because the mean of its divisors is an integer number (152955).

2⁶⁷⁹⁷⁹⁰ is an apocalyptic number.

679790 is a deficient number, since it is larger than the sum of its proper divisors (543850).

679790 is a wasteful number, since it uses less digits than its factorization.

679790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67986.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 679790 is about 824.4937840882. The cubic root of 679790 is about 87.9275402148.

The spelling of 679790 in words is "six hundred seventy-nine thousand, seven hundred ninety".