679751 has 2 divisors, whose sum is σ = 679752. Its totient is φ = 679750.

The previous prime is 679747. The next prime is 679753. The reversal of 679751 is 157976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679751 - 2² = 679747 is a prime.

It is a super-2 number, since 2×679751² = 924122844002, which contains 22 as substring.

Together with 679753, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339875 + 339876.

It is an arithmetic number, because the mean of its divisors is an integer number (339876).

2⁶⁷⁹⁷⁵¹ is an apocalyptic number.

679751 is a deficient number, since it is larger than the sum of its proper divisors (1).

679751 is an equidigital number, since it uses as much as digits as its factorization.

679751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13230, while the sum is 35.

The square root of 679751 is about 824.4701328732. The cubic root of 679751 is about 87.9258586956.

It can be divided in two parts, 67975 and 1, that added together give a palindrome (67976).

The spelling of 679751 in words is "six hundred seventy-nine thousand, seven hundred fifty-one".