492275809 has 2 divisors, whose sum is σ = 492275810. Its totient is φ = 492275808.

The previous prime is 492275801. The next prime is 492275827. The reversal of 492275809 is 908572294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 479829025 + 12446784 = 21905^2 + 3528^2 .

It is a cyclic number.

It is not a de Polignac number, because 492275809 - 2³ = 492275801 is a prime.

It is not a weakly prime, because it can be changed into another prime (492275801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246137904 + 246137905.

It is an arithmetic number, because the mean of its divisors is an integer number (246137905).

Almost surely, 2^492275809 is an apocalyptic number.

It is an amenable number.

492275809 is a deficient number, since it is larger than the sum of its proper divisors (1).

492275809 is an equidigital number, since it uses as much as digits as its factorization.

492275809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 492275809 is about 22187.2893567466. The cubic root of 492275809 is about 789.5921673192.

The spelling of 492275809 in words is "four hundred ninety-two million, two hundred seventy-five thousand, eight hundred nine".