492434681 has 2 divisors, whose sum is σ = 492434682. Its totient is φ = 492434680.

The previous prime is 492434653. The next prime is 492434693. The reversal of 492434681 is 186434294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 429152656 + 63282025 = 20716^2 + 7955^2 .

It is a cyclic number.

It is not a de Polignac number, because 492434681 - 2¹⁸ = 492172537 is a prime.

It is a super-2 number, since 2×492434681² = 484983830103143522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (492434611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246217340 + 246217341.

It is an arithmetic number, because the mean of its divisors is an integer number (246217341).

Almost surely, 2^492434681 is an apocalyptic number.

It is an amenable number.

492434681 is a deficient number, since it is larger than the sum of its proper divisors (1).

492434681 is an equidigital number, since it uses as much as digits as its factorization.

492434681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 41.

The square root of 492434681 is about 22190.8693160047. The cubic root of 492434681 is about 789.6770997846.

The spelling of 492434681 in words is "four hundred ninety-two million, four hundred thirty-four thousand, six hundred eighty-one".