804739 has 8 divisors (see below), whose sum is σ = 876512. Its totient is φ = 734400.

The previous prime is 804709. The next prime is 804743. The reversal of 804739 is 937408.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 804739 - 2⁷ = 804611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 804739.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (109564).

2⁸⁰⁴⁷³⁹ is an apocalyptic number.

804739 is a deficient number, since it is larger than the sum of its proper divisors (71773).

804739 is a wasteful number, since it uses less digits than its factorization.

804739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 804739 is about 897.0724608414. The cubic root of 804739 is about 93.0147199886.

The spelling of 804739 in words is "eight hundred four thousand, seven hundred thirty-nine".