492189289 has 2 divisors, whose sum is σ = 492189290. Its totient is φ = 492189288.

The previous prime is 492189283. The next prime is 492189301. The reversal of 492189289 is 982981294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 489161689 + 3027600 = 22117^2 + 1740^2 .

It is a cyclic number.

It is not a de Polignac number, because 492189289 - 2⁷ = 492189161 is a prime.

It is not a weakly prime, because it can be changed into another prime (492189283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246094644 + 246094645.

It is an arithmetic number, because the mean of its divisors is an integer number (246094645).

Almost surely, 2^492189289 is an apocalyptic number.

It is an amenable number.

492189289 is a deficient number, since it is larger than the sum of its proper divisors (1).

492189289 is an equidigital number, since it uses as much as digits as its factorization.

492189289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 52.

The square root of 492189289 is about 22185.3395060792. The cubic root of 492189289 is about 789.5459063169.

The spelling of 492189289 in words is "four hundred ninety-two million, one hundred eighty-nine thousand, two hundred eighty-nine".