492312881 has 2 divisors, whose sum is σ = 492312882. Its totient is φ = 492312880.

The previous prime is 492312823. The next prime is 492312889. The reversal of 492312881 is 188213294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 278890000 + 213422881 = 16700^2 + 14609^2 .

It is a cyclic number.

It is not a de Polignac number, because 492312881 - 2⁶ = 492312817 is a prime.

It is a super-2 number, since 2×492312881² = 484743945597040322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (492312889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246156440 + 246156441.

It is an arithmetic number, because the mean of its divisors is an integer number (246156441).

Almost surely, 2^492312881 is an apocalyptic number.

It is an amenable number.

492312881 is a deficient number, since it is larger than the sum of its proper divisors (1).

492312881 is an equidigital number, since it uses as much as digits as its factorization.

492312881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 38.

The square root of 492312881 is about 22188.1247743021. The cubic root of 492312881 is about 789.6119875267.

The spelling of 492312881 in words is "four hundred ninety-two million, three hundred twelve thousand, eight hundred eighty-one".