8388091 has 2 divisors, whose sum is σ = 8388092. Its totient is φ = 8388090.

The previous prime is 8388071. The next prime is 8388109. The reversal of 8388091 is 1908838.

Together with next prime (8388109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8388091 - 2⁵ = 8388059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8388091.

It is not a weakly prime, because it can be changed into another prime (8388071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4194045 + 4194046.

It is an arithmetic number, because the mean of its divisors is an integer number (4194046).

Almost surely, 2^8388091 is an apocalyptic number.

8388091 is a deficient number, since it is larger than the sum of its proper divisors (1).

8388091 is an equidigital number, since it uses as much as digits as its factorization.

8388091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 8388091 is about 2896.2201228498. The cubic root of 8388091 is about 203.1831603396.

The spelling of 8388091 in words is "eight million, three hundred eighty-eight thousand, ninety-one".