835194397 has 2 divisors, whose sum is σ = 835194398. Its totient is φ = 835194396.

The previous prime is 835194361. The next prime is 835194407. The reversal of 835194397 is 793491538.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 687960441 + 147233956 = 26229^2 + 12134^2 .

It is a cyclic number.

It is not a de Polignac number, because 835194397 - 2¹¹ = 835192349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 835194397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (835194307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417597198 + 417597199.

It is an arithmetic number, because the mean of its divisors is an integer number (417597199).

Almost surely, 2^835194397 is an apocalyptic number.

It is an amenable number.

835194397 is a deficient number, since it is larger than the sum of its proper divisors (1).

835194397 is an equidigital number, since it uses as much as digits as its factorization.

835194397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 835194397 is about 28899.7300506423. The cubic root of 835194397 is about 941.7360392188.

The spelling of 835194397 in words is "eight hundred thirty-five million, one hundred ninety-four thousand, three hundred ninety-seven".