22931593 has 2 divisors, whose sum is σ = 22931594. Its totient is φ = 22931592.

The previous prime is 22931591. The next prime is 22931617. The reversal of 22931593 is 39513922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20866624 + 2064969 = 4568^2 + 1437^2 .

It is a cyclic number.

It is not a de Polignac number, because 22931593 - 2¹ = 22931591 is a prime.

Together with 22931591, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22931591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11465796 + 11465797.

It is an arithmetic number, because the mean of its divisors is an integer number (11465797).

Almost surely, 2^22931593 is an apocalyptic number.

It is an amenable number.

22931593 is a deficient number, since it is larger than the sum of its proper divisors (1).

22931593 is an equidigital number, since it uses as much as digits as its factorization.

22931593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 34.

The square root of 22931593 is about 4788.6942896786. The cubic root of 22931593 is about 284.1044753818.

The spelling of 22931593 in words is "twenty-two million, nine hundred thirty-one thousand, five hundred ninety-three".