16394593 has 2 divisors, whose sum is σ = 16394594. Its totient is φ = 16394592.

The previous prime is 16394591. The next prime is 16394603. The reversal of 16394593 is 39549361.

16394593 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16378209 + 16384 = 4047^2 + 128^2 .

It is a cyclic number.

It is not a de Polignac number, because 16394593 - 2¹ = 16394591 is a prime.

Together with 16394591, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16394591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8197296 + 8197297.

It is an arithmetic number, because the mean of its divisors is an integer number (8197297).

Almost surely, 2^16394593 is an apocalyptic number.

It is an amenable number.

16394593 is a deficient number, since it is larger than the sum of its proper divisors (1).

16394593 is an equidigital number, since it uses as much as digits as its factorization.

16394593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 40.

The square root of 16394593 is about 4049.0237094885. The cubic root of 16394593 is about 254.0388939552.

The spelling of 16394593 in words is "sixteen million, three hundred ninety-four thousand, five hundred ninety-three".