8857091 has 2 divisors, whose sum is σ = 8857092. Its totient is φ = 8857090.

The previous prime is 8857067. The next prime is 8857111. The reversal of 8857091 is 1907588.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8857091 - 2⁶ = 8857027 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (8857031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4428545 + 4428546.

It is an arithmetic number, because the mean of its divisors is an integer number (4428546).

Almost surely, 2^8857091 is an apocalyptic number.

8857091 is a deficient number, since it is larger than the sum of its proper divisors (1).

8857091 is an equidigital number, since it uses as much as digits as its factorization.

8857091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 8857091 is about 2976.0865242798. The cubic root of 8857091 is about 206.9015300204.

The spelling of 8857091 in words is "eight million, eight hundred fifty-seven thousand, ninety-one".