804249291 has 4 divisors (see below), whose sum is σ = 1072332392. Its totient is φ = 536166192.

The previous prime is 804249283. The next prime is 804249293. The reversal of 804249291 is 192942408.

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

It is not a de Polignac number, because 804249291 - 2³ = 804249283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (804249293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134041546 + ... + 134041551.

It is an arithmetic number, because the mean of its divisors is an integer number (268083098).

Almost surely, 2^804249291 is an apocalyptic number.

804249291 is a deficient number, since it is larger than the sum of its proper divisors (268083101).

804249291 is a wasteful number, since it uses less digits than its factorization.

804249291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268083100.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 804249291 is about 28359.2893246640. The cubic root of 804249291 is about 929.9584869896.

The spelling of 804249291 in words is "eight hundred four million, two hundred forty-nine thousand, two hundred ninety-one".