709398 has 40 divisors (see below), whose sum is σ = 1655280. Its totient is φ = 226800.

The previous prime is 709381. The next prime is 709409. The reversal of 709398 is 893907.

709398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4623 + ... + 4773.

It is an arithmetic number, because the mean of its divisors is an integer number (41382).

2⁷⁰⁹³⁹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 709398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (827640).

709398 is an abundant number, since it is smaller than the sum of its proper divisors (945882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

709398 is a wasteful number, since it uses less digits than its factorization.

709398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 709398 is about 842.2576802856. The cubic root of 709398 is about 89.1859932292.

The spelling of 709398 in words is "seven hundred nine thousand, three hundred ninety-eight".