8957591 has 2 divisors, whose sum is σ = 8957592. Its totient is φ = 8957590.

The previous prime is 8957579. The next prime is 8957593. The reversal of 8957591 is 1957598.

It is a happy number.

8957591 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 8957591 - 2¹⁰ = 8956567 is a prime.

Together with 8957593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8957593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4478795 + 4478796.

It is an arithmetic number, because the mean of its divisors is an integer number (4478796).

Almost surely, 2^8957591 is an apocalyptic number.

8957591 is a deficient number, since it is larger than the sum of its proper divisors (1).

8957591 is an equidigital number, since it uses as much as digits as its factorization.

8957591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 44.

The square root of 8957591 is about 2992.9234871610. The cubic root of 8957591 is about 207.6811482415.

The spelling of 8957591 in words is "eight million, nine hundred fifty-seven thousand, five hundred ninety-one".