804907691 has 4 divisors (see below), whose sum is σ = 919894512. Its totient is φ = 689920872.

The previous prime is 804907681. The next prime is 804907711. The reversal of 804907691 is 196709408.

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

It is a cyclic number.

It is not a de Polignac number, because 804907691 - 2²² = 800713387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (804907681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57493400 + ... + 57493413.

It is an arithmetic number, because the mean of its divisors is an integer number (229973628).

Almost surely, 2^804907691 is an apocalyptic number.

804907691 is a deficient number, since it is larger than the sum of its proper divisors (114986821).

804907691 is a wasteful number, since it uses less digits than its factorization.

804907691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114986820.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 804907691 is about 28370.8951392091. The cubic root of 804907691 is about 930.2121884509.

The spelling of 804907691 in words is "eight hundred four million, nine hundred seven thousand, six hundred ninety-one".