204101693 has 4 divisors (see below), whose sum is σ = 208848288. Its totient is φ = 199355100.

The previous prime is 204101671. The next prime is 204101699. The reversal of 204101693 is 396101402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 396101402 = 2 ⋅198050701.

It is a cyclic number.

It is not a de Polignac number, because 204101693 - 2⁸ = 204101437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204101699) 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 in 3 ways as a sum of consecutive naturals, for example, 2373233 + ... + 2373318.

It is an arithmetic number, because the mean of its divisors is an integer number (52212072).

Almost surely, 2^204101693 is an apocalyptic number.

It is an amenable number.

204101693 is a deficient number, since it is larger than the sum of its proper divisors (4746595).

204101693 is an equidigital number, since it uses as much as digits as its factorization.

204101693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4746594.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 204101693 is about 14286.4163806043. The cubic root of 204101693 is about 588.7743328941.

The spelling of 204101693 in words is "two hundred four million, one hundred one thousand, six hundred ninety-three".