709039 has 4 divisors (see below), whose sum is σ = 714280. Its totient is φ = 703800.

The previous prime is 708997. The next prime is 709043. The reversal of 709039 is 930907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930907 = 43 ⋅21649.

It is a cyclic number.

It is not a de Polignac number, because 709039 - 2⁹ = 708527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 708998 and 709016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709139) 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, 2412 + ... + 2689.

It is an arithmetic number, because the mean of its divisors is an integer number (178570).

2⁷⁰⁹⁰³⁹ is an apocalyptic number.

709039 is a deficient number, since it is larger than the sum of its proper divisors (5241).

709039 is a wasteful number, since it uses less digits than its factorization.

709039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5240.

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 709039 is about 842.0445356393. The cubic root of 709039 is about 89.1709461169.

The spelling of 709039 in words is "seven hundred nine thousand, thirty-nine".