204232789 has 2 divisors, whose sum is σ = 204232790. Its totient is φ = 204232788.

The previous prime is 204232771. The next prime is 204232837. The reversal of 204232789 is 987232402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186868900 + 17363889 = 13670^2 + 4167^2 .

It is a cyclic number.

It is not a de Polignac number, because 204232789 - 2⁹ = 204232277 is a prime.

It is a super-2 number, since 2×204232789² = 83422064205437042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204232759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102116394 + 102116395.

It is an arithmetic number, because the mean of its divisors is an integer number (102116395).

Almost surely, 2^204232789 is an apocalyptic number.

It is an amenable number.

204232789 is a deficient number, since it is larger than the sum of its proper divisors (1).

204232789 is an equidigital number, since it uses as much as digits as its factorization.

204232789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 204232789 is about 14291.0037786014. The cubic root of 204232789 is about 588.9003639247.

The spelling of 204232789 in words is "two hundred four million, two hundred thirty-two thousand, seven hundred eighty-nine".