709099 has 4 divisors (see below), whose sum is σ = 746440. Its totient is φ = 671760.

The previous prime is 709097. The next prime is 709117. The reversal of 709099 is 990907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990907 = 19 ⋅52153.

It is a cyclic number.

It is not a de Polignac number, because 709099 - 2¹ = 709097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (709097) 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, 18642 + ... + 18679.

It is an arithmetic number, because the mean of its divisors is an integer number (186610).

2⁷⁰⁹⁰⁹⁹ is an apocalyptic number.

709099 is a deficient number, since it is larger than the sum of its proper divisors (37341).

709099 is a wasteful number, since it uses less digits than its factorization.

709099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37340.

The product of its (nonzero) digits is 5103, while the sum is 34.

The square root of 709099 is about 842.0801624549. The cubic root of 709099 is about 89.1734613081.

The spelling of 709099 in words is "seven hundred nine thousand, ninety-nine".