204926797 has 2 divisors, whose sum is σ = 204926798. Its totient is φ = 204926796.

The previous prime is 204926773. The next prime is 204926881. The reversal of 204926797 is 797629402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113934276 + 90992521 = 10674^2 + 9539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204926797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204926597) 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, 102463398 + 102463399.

It is an arithmetic number, because the mean of its divisors is an integer number (102463399).

Almost surely, 2^204926797 is an apocalyptic number.

It is an amenable number.

204926797 is a deficient number, since it is larger than the sum of its proper divisors (1).

204926797 is an equidigital number, since it uses as much as digits as its factorization.

204926797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 204926797 is about 14315.2644753773. The cubic root of 204926797 is about 589.5666615981.

The spelling of 204926797 in words is "two hundred four million, nine hundred twenty-six thousand, seven hundred ninety-seven".