499997231 has 2 divisors, whose sum is σ = 499997232. Its totient is φ = 499997230.

The previous prime is 499997219. The next prime is 499997269. The reversal of 499997231 is 132799994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 499997231 - 2¹⁴ = 499980847 is a prime.

It is a super-2 number, since 2×499997231² = 499994462015334722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499997291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249998615 + 249998616.

It is an arithmetic number, because the mean of its divisors is an integer number (249998616).

Almost surely, 2^499997231 is an apocalyptic number.

499997231 is a deficient number, since it is larger than the sum of its proper divisors (1).

499997231 is an equidigital number, since it uses as much as digits as its factorization.

499997231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102248, while the sum is 53.

The square root of 499997231 is about 22360.6178581899. The cubic root of 499997231 is about 793.6990608102.

The spelling of 499997231 in words is "four hundred ninety-nine million, nine hundred ninety-seven thousand, two hundred thirty-one".