679951 has 2 divisors, whose sum is σ = 679952. Its totient is φ = 679950.

The previous prime is 679933. The next prime is 679957. The reversal of 679951 is 159976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679951 - 2⁵ = 679919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 679951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339975 + 339976.

It is an arithmetic number, because the mean of its divisors is an integer number (339976).

2⁶⁷⁹⁹⁵¹ is an apocalyptic number.

679951 is a deficient number, since it is larger than the sum of its proper divisors (1).

679951 is an equidigital number, since it uses as much as digits as its factorization.

679951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 37.

The square root of 679951 is about 824.5914139742. The cubic root of 679951 is about 87.9344811899.

The spelling of 679951 in words is "six hundred seventy-nine thousand, nine hundred fifty-one".