499831311 has 12 divisors (see below), whose sum is σ = 775248792. Its totient is φ = 285617808.

The previous prime is 499831301. The next prime is 499831313. The reversal of 499831311 is 113138994.

It is a happy number.

It is not a de Polignac number, because 499831311 - 2¹⁴ = 499814927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499831311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499831313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1699960 + ... + 1700253.

It is an arithmetic number, because the mean of its divisors is an integer number (64604066).

Almost surely, 2^499831311 is an apocalyptic number.

499831311 is a deficient number, since it is larger than the sum of its proper divisors (275417481).

499831311 is a wasteful number, since it uses less digits than its factorization.

499831311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400230 (or 3400223 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 499831311 is about 22356.9074560861. The cubic root of 499831311 is about 793.6112569122.

The spelling of 499831311 in words is "four hundred ninety-nine million, eight hundred thirty-one thousand, three hundred eleven".