709404 has 24 divisors (see below), whose sum is σ = 1709568. Its totient is φ = 228720.

The previous prime is 709381. The next prime is 709409. The reversal of 709404 is 404907.

709404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709409) by changing a digit.

709404 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582 + ... + 1325.

It is an arithmetic number, because the mean of its divisors is an integer number (71232).

2⁷⁰⁹⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

709404 is an abundant number, since it is smaller than the sum of its proper divisors (1000164).

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

709404 is a wasteful number, since it uses less digits than its factorization.

709404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945 (or 1943 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 709404 is about 842.2612421333. The cubic root of 709404 is about 89.1862446699.

The spelling of 709404 in words is "seven hundred nine thousand, four hundred four".