492374257 has 2 divisors, whose sum is σ = 492374258. Its totient is φ = 492374256.

The previous prime is 492374251. The next prime is 492374297. The reversal of 492374257 is 752473294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 370139121 + 122235136 = 19239^2 + 11056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-492374257 is a prime.

It is not a weakly prime, because it can be changed into another prime (492374251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246187128 + 246187129.

It is an arithmetic number, because the mean of its divisors is an integer number (246187129).

Almost surely, 2^492374257 is an apocalyptic number.

It is an amenable number.

492374257 is a deficient number, since it is larger than the sum of its proper divisors (1).

492374257 is an equidigital number, since it uses as much as digits as its factorization.

492374257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 43.

The square root of 492374257 is about 22189.5078133788. The cubic root of 492374257 is about 789.6447994595.

The spelling of 492374257 in words is "four hundred ninety-two million, three hundred seventy-four thousand, two hundred fifty-seven".