193860493 has 2 divisors, whose sum is σ = 193860494. Its totient is φ = 193860492.

The previous prime is 193860467. The next prime is 193860509. The reversal of 193860493 is 394068391.

193860493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193710724 + 149769 = 13918^2 + 387^2 .

It is an emirp because it is prime and its reverse (394068391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 193860493 - 2¹³ = 193852301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193860463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96930246 + 96930247.

It is an arithmetic number, because the mean of its divisors is an integer number (96930247).

Almost surely, 2^193860493 is an apocalyptic number.

It is an amenable number.

193860493 is a deficient number, since it is larger than the sum of its proper divisors (1).

193860493 is an equidigital number, since it uses as much as digits as its factorization.

193860493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 193860493 is about 13923.3793670933. The cubic root of 193860493 is about 578.7572409595.

The spelling of 193860493 in words is "one hundred ninety-three million, eight hundred sixty thousand, four hundred ninety-three".