804269813 has 4 divisors (see below), whose sum is σ = 851579820. Its totient is φ = 756959808.

The previous prime is 804269801. The next prime is 804269821. The reversal of 804269813 is 318962408.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 710915569 + 93354244 = 26663^2 + 9662^2 .

It is a cyclic number.

It is not a de Polignac number, because 804269813 - 2¹⁰ = 804268789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804269863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23654978 + ... + 23655011.

It is an arithmetic number, because the mean of its divisors is an integer number (212894955).

Almost surely, 2^804269813 is an apocalyptic number.

It is an amenable number.

804269813 is a deficient number, since it is larger than the sum of its proper divisors (47310007).

804269813 is a wasteful number, since it uses less digits than its factorization.

804269813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47310006.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 804269813 is about 28359.6511438346. The cubic root of 804269813 is about 929.9663968280.

The spelling of 804269813 in words is "eight hundred four million, two hundred sixty-nine thousand, eight hundred thirteen".