715679 has 2 divisors, whose sum is σ = 715680. Its totient is φ = 715678.

The previous prime is 715657. The next prime is 715681. The reversal of 715679 is 976517.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 715679 - 2⁸ = 715423 is a prime.

Together with 715681, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 7⁵ + 1 + 6⁶ + 5⁵ + 7⁶ + 9⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (715639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357839 + 357840.

It is an arithmetic number, because the mean of its divisors is an integer number (357840).

2⁷¹⁵⁶⁷⁹ is an apocalyptic number.

715679 is a deficient number, since it is larger than the sum of its proper divisors (1).

715679 is an equidigital number, since it uses as much as digits as its factorization.

715679 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 715679 is about 845.9781321051. The cubic root of 715679 is about 89.4484373677.

The spelling of 715679 in words is "seven hundred fifteen thousand, six hundred seventy-nine".