204271693 has 2 divisors, whose sum is σ = 204271694. Its totient is φ = 204271692.

The previous prime is 204271687. The next prime is 204271703. The reversal of 204271693 is 396172402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196504324 + 7767369 = 14018^2 + 2787^2 .

It is a cyclic number.

It is not a de Polignac number, because 204271693 - 2⁹ = 204271181 is a prime.

It is a super-2 number, since 2×204271693² = 83453849122172498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204271633) 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, 102135846 + 102135847.

It is an arithmetic number, because the mean of its divisors is an integer number (102135847).

Almost surely, 2^204271693 is an apocalyptic number.

It is an amenable number.

204271693 is a deficient number, since it is larger than the sum of its proper divisors (1).

204271693 is an equidigital number, since it uses as much as digits as its factorization.

204271693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 204271693 is about 14292.3648498070. The cubic root of 204271693 is about 588.9377544686.

The spelling of 204271693 in words is "two hundred four million, two hundred seventy-one thousand, six hundred ninety-three".