16940593 has 2 divisors, whose sum is σ = 16940594. Its totient is φ = 16940592.

The previous prime is 16940591. The next prime is 16940603. The reversal of 16940593 is 39504961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14227984 + 2712609 = 3772^2 + 1647^2 .

It is a cyclic number.

It is not a de Polignac number, because 16940593 - 2¹ = 16940591 is a prime.

Together with 16940591, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16940591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8470296 + 8470297.

It is an arithmetic number, because the mean of its divisors is an integer number (8470297).

Almost surely, 2^16940593 is an apocalyptic number.

It is an amenable number.

16940593 is a deficient number, since it is larger than the sum of its proper divisors (1).

16940593 is an equidigital number, since it uses as much as digits as its factorization.

16940593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 16940593 is about 4115.8951638738. The cubic root of 16940593 is about 256.8282955286.

The spelling of 16940593 in words is "sixteen million, nine hundred forty thousand, five hundred ninety-three".