8097581 has 2 divisors, whose sum is σ = 8097582. Its totient is φ = 8097580.

The previous prime is 8097571. The next prime is 8097599. The reversal of 8097581 is 1857908.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7107556 + 990025 = 2666^2 + 995^2 .

It is a cyclic number.

It is not a de Polignac number, because 8097581 - 2⁶ = 8097517 is a prime.

It is a super-2 number, since 2×8097581² = 131141636103122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8097521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4048790 + 4048791.

It is an arithmetic number, because the mean of its divisors is an integer number (4048791).

Almost surely, 2^8097581 is an apocalyptic number.

It is an amenable number.

8097581 is a deficient number, since it is larger than the sum of its proper divisors (1).

8097581 is an equidigital number, since it uses as much as digits as its factorization.

8097581 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 8097581 is about 2845.6248874369. The cubic root of 8097581 is about 200.8098909563.

The spelling of 8097581 in words is "eight million, ninety-seven thousand, five hundred eighty-one".