194426833 has 2 divisors, whose sum is σ = 194426834. Its totient is φ = 194426832.

The previous prime is 194426809. The next prime is 194426839. The reversal of 194426833 is 338624491.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188705169 + 5721664 = 13737^2 + 2392^2 .

It is a cyclic number.

It is not a de Polignac number, because 194426833 - 2⁹ = 194426321 is a prime.

It is not a weakly prime, because it can be changed into another prime (194426839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97213416 + 97213417.

It is an arithmetic number, because the mean of its divisors is an integer number (97213417).

Almost surely, 2^194426833 is an apocalyptic number.

It is an amenable number.

194426833 is a deficient number, since it is larger than the sum of its proper divisors (1).

194426833 is an equidigital number, since it uses as much as digits as its factorization.

194426833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 40.

The square root of 194426833 is about 13943.7022702007. The cubic root of 194426833 is about 579.3202828053.

The spelling of 194426833 in words is "one hundred ninety-four million, four hundred twenty-six thousand, eight hundred thirty-three".