492270991 has 2 divisors, whose sum is σ = 492270992. Its totient is φ = 492270990.

The previous prime is 492270971. The next prime is 492271007. The reversal of 492270991 is 199072294.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 492270991 - 2⁵ = 492270959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492270931) 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, 246135495 + 246135496.

It is an arithmetic number, because the mean of its divisors is an integer number (246135496).

Almost surely, 2^492270991 is an apocalyptic number.

492270991 is a deficient number, since it is larger than the sum of its proper divisors (1).

492270991 is an equidigital number, since it uses as much as digits as its factorization.

492270991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 492270991 is about 22187.1807808022. The cubic root of 492270991 is about 789.5895913462.

The spelling of 492270991 in words is "four hundred ninety-two million, two hundred seventy thousand, nine hundred ninety-one".