704424 has 48 divisors (see below), whose sum is σ = 2052000. Its totient is φ = 200928.

The previous prime is 704419. The next prime is 704441. The reversal of 704424 is 424407.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 704424.

It is a congruent number.

It is an unprimeable number.

704424 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 11 ways as a sum of consecutive naturals, for example, 877 + ... + 1475.

It is an arithmetic number, because the mean of its divisors is an integer number (42750).

2⁷⁰⁴⁴²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 704424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1026000).

704424 is an abundant number, since it is smaller than the sum of its proper divisors (1347576).

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

704424 is a wasteful number, since it uses less digits than its factorization.

704424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 704424 is about 839.2997080900. The cubic root of 704424 is about 88.9770592727.

It can be divided in two parts, 704 and 424, that added together give a triangular number (1128 = T₄₇).

The spelling of 704424 in words is "seven hundred four thousand, four hundred twenty-four", and thus it is an iban number.