715979 has 4 divisors (see below), whose sum is σ = 781080. Its totient is φ = 650880.

The previous prime is 715973. The next prime is 715991. The reversal of 715979 is 979517.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 715979 - 2⁴ = 715963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (715973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32534 + ... + 32555.

It is an arithmetic number, because the mean of its divisors is an integer number (195270).

2⁷¹⁵⁹⁷⁹ is an apocalyptic number.

715979 is a deficient number, since it is larger than the sum of its proper divisors (65101).

715979 is a wasteful number, since it uses less digits than its factorization.

715979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65100.

The product of its digits is 19845, while the sum is 38.

The square root of 715979 is about 846.1554230755. The cubic root of 715979 is about 89.4609340236.

The spelling of 715979 in words is "seven hundred fifteen thousand, nine hundred seventy-nine".