204028969 has 2 divisors, whose sum is σ = 204028970. Its totient is φ = 204028968.

The previous prime is 204028961. The next prime is 204028999. The reversal of 204028969 is 969820402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105781225 + 98247744 = 10285^2 + 9912^2 .

It is a cyclic number.

It is not a de Polignac number, because 204028969 - 2³ = 204028961 is a prime.

It is a super-2 number, since 2×204028969² = 83255640382405922, which contains 22 as substring.

It is a Chen prime.

It is equal to p_11289667 and since 204028969 and 11289667 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (204028961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102014484 + 102014485.

It is an arithmetic number, because the mean of its divisors is an integer number (102014485).

Almost surely, 2^204028969 is an apocalyptic number.

It is an amenable number.

204028969 is a deficient number, since it is larger than the sum of its proper divisors (1).

204028969 is an equidigital number, since it uses as much as digits as its factorization.

204028969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 204028969 is about 14283.8709389297. The cubic root of 204028969 is about 588.7043953538.

The spelling of 204028969 in words is "two hundred four million, twenty-eight thousand, nine hundred sixty-nine".