8968591 has 2 divisors, whose sum is σ = 8968592. Its totient is φ = 8968590.

The previous prime is 8968573. The next prime is 8968601. The reversal of 8968591 is 1958698.

8968591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8968591 - 2¹⁷ = 8837519 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8965591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4484295 + 4484296.

It is an arithmetic number, because the mean of its divisors is an integer number (4484296).

Almost surely, 2^8968591 is an apocalyptic number.

8968591 is a deficient number, since it is larger than the sum of its proper divisors (1).

8968591 is an equidigital number, since it uses as much as digits as its factorization.

8968591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 46.

The square root of 8968591 is about 2994.7605914330. The cubic root of 8968591 is about 207.7661248884.

It can be divided in two parts, 8968 and 591, that added together give a palindrome (9559).

The spelling of 8968591 in words is "eight million, nine hundred sixty-eight thousand, five hundred ninety-one".