497807231 has 2 divisors, whose sum is σ = 497807232. Its totient is φ = 497807230.

The previous prime is 497807227. The next prime is 497807257. The reversal of 497807231 is 132708794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 497807231 - 2² = 497807227 is a prime.

It is a super-2 number, since 2×497807231² = 495624078471774722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497807291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248903615 + 248903616.

It is an arithmetic number, because the mean of its divisors is an integer number (248903616).

Almost surely, 2^497807231 is an apocalyptic number.

497807231 is a deficient number, since it is larger than the sum of its proper divisors (1).

497807231 is an equidigital number, since it uses as much as digits as its factorization.

497807231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 497807231 is about 22311.5940936545. The cubic root of 497807231 is about 792.5385577673.

The spelling of 497807231 in words is "four hundred ninety-seven million, eight hundred seven thousand, two hundred thirty-one".