709340579 has 4 divisors (see below), whose sum is σ = 728511984. Its totient is φ = 690169176.

The previous prime is 709340537. The next prime is 709340581. The reversal of 709340579 is 975043907.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 975043907 = 6779 ⋅143833.

It is a cyclic number.

It is not a de Polignac number, because 709340579 - 2¹² = 709336483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (709349579) 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, 9585647 + ... + 9585720.

It is an arithmetic number, because the mean of its divisors is an integer number (182127996).

Almost surely, 2^709340579 is an apocalyptic number.

709340579 is a deficient number, since it is larger than the sum of its proper divisors (19171405).

709340579 is a wasteful number, since it uses less digits than its factorization.

709340579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19171404.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 709340579 is about 26633.4484999596. The cubic root of 709340579 is about 891.8358682874.

The spelling of 709340579 in words is "seven hundred nine million, three hundred forty thousand, five hundred seventy-nine".