2863591 has 2 divisors, whose sum is σ = 2863592. Its totient is φ = 2863590.

The previous prime is 2863589. The next prime is 2863603. The reversal of 2863591 is 1953682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2863591 - 2¹ = 2863589 is a prime.

Together with 2863589, it forms a pair of twin primes.

2863591 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2863291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1431795 + 1431796.

It is an arithmetic number, because the mean of its divisors is an integer number (1431796).

2^2863591 is an apocalyptic number.

2863591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2863591 is an equidigital number, since it uses as much as digits as its factorization.

2863591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 34.

The square root of 2863591 is about 1692.2148208782. The cubic root of 2863591 is about 142.0050087501.

Subtracting from 2863591 its reverse (1953682), we obtain a palindrome (909909).

The spelling of 2863591 in words is "two million, eight hundred sixty-three thousand, five hundred ninety-one".