193426693 has 2 divisors, whose sum is σ = 193426694. Its totient is φ = 193426692.

The previous prime is 193426591. The next prime is 193426699. The reversal of 193426693 is 396624391.

193426693 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., 103897249 + 89529444 = 10193^2 + 9462^2 .

It is a cyclic number.

It is not a de Polignac number, because 193426693 - 2²⁵ = 159872261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193426699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96713346 + 96713347.

It is an arithmetic number, because the mean of its divisors is an integer number (96713347).

Almost surely, 2^193426693 is an apocalyptic number.

It is an amenable number.

193426693 is a deficient number, since it is larger than the sum of its proper divisors (1).

193426693 is an equidigital number, since it uses as much as digits as its factorization.

193426693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 43.

The square root of 193426693 is about 13907.7925279320. The cubic root of 193426693 is about 578.3252251510.

The spelling of 193426693 in words is "one hundred ninety-three million, four hundred twenty-six thousand, six hundred ninety-three".