704820 has 48 divisors (see below), whose sum is σ = 2092608. Its totient is φ = 176640.

The previous prime is 704819. The next prime is 704833. The reversal of 704820 is 28407.

It is a happy number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 704820.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 675 + ... + 1365.

It is an arithmetic number, because the mean of its divisors is an integer number (43596).

2⁷⁰⁴⁸²⁰ 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 704820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1046304).

704820 is an abundant number, since it is smaller than the sum of its proper divisors (1387788).

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

704820 is a wasteful number, since it uses less digits than its factorization.

704820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 704820 is about 839.5355859045. The cubic root of 704820 is about 88.9937293061.

The spelling of 704820 in words is "seven hundred four thousand, eight hundred twenty".