804705 has 16 divisors (see below), whose sum is σ = 1404864. Its totient is φ = 390080.

The previous prime is 804703. The next prime is 804709. The reversal of 804705 is 507408.

It is not a de Polignac number, because 804705 - 2¹ = 804703 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (804703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2274 + ... + 2603.

It is an arithmetic number, because the mean of its divisors is an integer number (87804).

2⁸⁰⁴⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

804705 is a deficient number, since it is larger than the sum of its proper divisors (600159).

804705 is a wasteful number, since it uses less digits than its factorization.

804705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4896.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 804705 is about 897.0535101096. The cubic root of 804705 is about 93.0134100214.

The spelling of 804705 in words is "eight hundred four thousand, seven hundred five".