16494593 has 2 divisors, whose sum is σ = 16494594. Its totient is φ = 16494592.

The previous prime is 16494589. The next prime is 16494617. The reversal of 16494593 is 39549461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16459249 + 35344 = 4057^2 + 188^2 .

It is a cyclic number.

It is not a de Polignac number, because 16494593 - 2² = 16494589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16494593.

It is not a weakly prime, because it can be changed into another prime (16494293) 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, 8247296 + 8247297.

It is an arithmetic number, because the mean of its divisors is an integer number (8247297).

It is a Proth number, since it is equal to 4027 ⋅ 2¹² + 1 and 4027 < 2¹².

Almost surely, 2^16494593 is an apocalyptic number.

It is an amenable number.

16494593 is a deficient number, since it is larger than the sum of its proper divisors (1).

16494593 is an equidigital number, since it uses as much as digits as its factorization.

16494593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 41.

The square root of 16494593 is about 4061.3535920922. The cubic root of 16494593 is about 254.5543568431.

The spelling of 16494593 in words is "sixteen million, four hundred ninety-four thousand, five hundred ninety-three".