709979 has 8 divisors (see below), whose sum is σ = 735072. Its totient is φ = 685440.

The previous prime is 709967. The next prime is 709981. The reversal of 709979 is 979907.

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

It is a cyclic number.

It is not a de Polignac number, because 709979 - 2⁴ = 709963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (709909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6227 + ... + 6339.

It is an arithmetic number, because the mean of its divisors is an integer number (91884).

2⁷⁰⁹⁹⁷⁹ is an apocalyptic number.

709979 is a deficient number, since it is larger than the sum of its proper divisors (25093).

709979 is a wasteful number, since it uses less digits than its factorization.

709979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277.

The product of its (nonzero) digits is 35721, while the sum is 41.

The square root of 709979 is about 842.6025160181. The cubic root of 709979 is about 89.2103344887.

The spelling of 709979 in words is "seven hundred nine thousand, nine hundred seventy-nine".