193400833 has 2 divisors, whose sum is σ = 193400834. Its totient is φ = 193400832.

The previous prime is 193400821. The next prime is 193400881. The reversal of 193400833 is 338004391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129208689 + 64192144 = 11367^2 + 8012^2 .

It is an emirp because it is prime and its reverse (338004391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 193400833 - 2²¹ = 191303681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 193400795 and 193400804.

It is not a weakly prime, because it can be changed into another prime (193400033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96700416 + 96700417.

It is an arithmetic number, because the mean of its divisors is an integer number (96700417).

Almost surely, 2^193400833 is an apocalyptic number.

It is an amenable number.

193400833 is a deficient number, since it is larger than the sum of its proper divisors (1).

193400833 is an equidigital number, since it uses as much as digits as its factorization.

193400833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 193400833 is about 13906.8628022283. The cubic root of 193400833 is about 578.2994511198.

The spelling of 193400833 in words is "one hundred ninety-three million, four hundred thousand, eight hundred thirty-three".