616804 has 12 divisors (see below), whose sum is σ = 1106028. Its totient is φ = 300800.

The previous prime is 616799. The next prime is 616829. The reversal of 616804 is 408616.

It can be written as a sum of positive squares in 2 ways, for example, as 129600 + 487204 = 360^2 + 698^2 .

It is a congruent number.

It is an unprimeable number.

616804 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 3 ways as a sum of consecutive naturals, for example, 1717 + ... + 2044.

It is an arithmetic number, because the mean of its divisors is an integer number (92169).

2⁶¹⁶⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

616804 is a deficient number, since it is larger than the sum of its proper divisors (489224).

616804 is a wasteful number, since it uses less digits than its factorization.

616804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3806 (or 3804 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 616804 is about 785.3687032216. The cubic root of 616804 is about 85.1234193253.

The spelling of 616804 in words is "six hundred sixteen thousand, eight hundred four".