804756213 has 6 divisors (see below), whose sum is σ = 1162425654. Its totient is φ = 536504136.

The previous prime is 804756209. The next prime is 804756289. The reversal of 804756213 is 312657408.

804756213 is a `hidden beast` number, since 80 + 4 + 7 + 562 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 754161444 + 50594769 = 27462^2 + 7113^2 .

It is not a de Polignac number, because 804756213 - 2² = 804756209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804756413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44708670 + ... + 44708687.

It is an arithmetic number, because the mean of its divisors is an integer number (193737609).

Almost surely, 2^804756213 is an apocalyptic number.

It is an amenable number.

804756213 is a deficient number, since it is larger than the sum of its proper divisors (357669441).

804756213 is a wasteful number, since it uses less digits than its factorization.

804756213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89417363 (or 89417360 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 804756213 is about 28368.2254115410. The cubic root of 804756213 is about 930.1538316466.

The spelling of 804756213 in words is "eight hundred four million, seven hundred fifty-six thousand, two hundred thirteen".