8004091 has 2 divisors, whose sum is σ = 8004092. Its totient is φ = 8004090.

The previous prime is 8004083. The next prime is 8004097. The reversal of 8004091 is 1904008.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8004091 - 2³ = 8004083 is a prime.

It is not a weakly prime, because it can be changed into another prime (8004097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4002045 + 4002046.

It is an arithmetic number, because the mean of its divisors is an integer number (4002046).

Almost surely, 2^8004091 is an apocalyptic number.

8004091 is a deficient number, since it is larger than the sum of its proper divisors (1).

8004091 is an equidigital number, since it uses as much as digits as its factorization.

8004091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 8004091 is about 2829.1502257745. The cubic root of 8004091 is about 200.0340858571.

Adding to 8004091 its reverse (1904008), we get a palindrome (9908099).

The spelling of 8004091 in words is "eight million, four thousand, ninety-one".