492473609 has 2 divisors, whose sum is σ = 492473610. Its totient is φ = 492473608.

The previous prime is 492473603. The next prime is 492473617. The reversal of 492473609 is 906374294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 425184400 + 67289209 = 20620^2 + 8203^2 .

It is a cyclic number.

It is not a de Polignac number, because 492473609 - 2⁴ = 492473593 is a prime.

It is a super-2 number, since 2×492473609² = 485060511122969762, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 492473609.

It is not a weakly prime, because it can be changed into another prime (492473603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246236804 + 246236805.

It is an arithmetic number, because the mean of its divisors is an integer number (246236805).

Almost surely, 2^492473609 is an apocalyptic number.

It is an amenable number.

492473609 is a deficient number, since it is larger than the sum of its proper divisors (1).

492473609 is an equidigital number, since it uses as much as digits as its factorization.

492473609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 492473609 is about 22191.7464161791. The cubic root of 492473609 is about 789.6979077830.

The spelling of 492473609 in words is "four hundred ninety-two million, four hundred seventy-three thousand, six hundred nine".