804745 has 16 divisors (see below), whose sum is σ = 1045440. Its totient is φ = 592704.

The previous prime is 804743. The next prime is 804751. The reversal of 804745 is 547408.

It is a cyclic number.

It is not a de Polignac number, because 804745 - 2¹ = 804743 is a prime.

It is a super-2 number, since 2×804745² = 1295229030050, which contains 22 as substring.

804745 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (804743) 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, 3987 + ... + 4183.

It is an arithmetic number, because the mean of its divisors is an integer number (65340).

2⁸⁰⁴⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

804745 is a deficient number, since it is larger than the sum of its proper divisors (240695).

804745 is a wasteful number, since it uses less digits than its factorization.

804745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 804745 is about 897.0758050466. The cubic root of 804745 is about 93.0149511554.

The spelling of 804745 in words is "eight hundred four thousand, seven hundred forty-five".