23321593 has 2 divisors, whose sum is σ = 23321594. Its totient is φ = 23321592.

The previous prime is 23321549. The next prime is 23321621. The reversal of 23321593 is 39512332.

It is an a-pointer prime, because the next prime (23321621) can be obtained adding 23321593 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20178064 + 3143529 = 4492^2 + 1773^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23321593 is a prime.

It is not a weakly prime, because it can be changed into another prime (23321533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660796 + 11660797.

It is an arithmetic number, because the mean of its divisors is an integer number (11660797).

Almost surely, 2^23321593 is an apocalyptic number.

It is an amenable number.

23321593 is a deficient number, since it is larger than the sum of its proper divisors (1).

23321593 is an equidigital number, since it uses as much as digits as its factorization.

23321593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 28.

The square root of 23321593 is about 4829.2435225406. The cubic root of 23321593 is about 285.7060283209.

The spelling of 23321593 in words is "twenty-three million, three hundred twenty-one thousand, five hundred ninety-three".