704808 has 64 divisors (see below), whose sum is σ = 2116800. Its totient is φ = 216000.

The previous prime is 704807. The next prime is 704819. The reversal of 704808 is 808407.

It is a happy number.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (704801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2683 + ... + 2933.

It is an arithmetic number, because the mean of its divisors is an integer number (33075).

2⁷⁰⁴⁸⁰⁸ is an apocalyptic number.

704808 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 704808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1058400).

704808 is an abundant number, since it is smaller than the sum of its proper divisors (1411992).

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

704808 is a wasteful number, since it uses less digits than its factorization.

704808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 704808 is about 839.5284390656. The cubic root of 704808 is about 88.9932242453.

The spelling of 704808 in words is "seven hundred four thousand, eight hundred eight".