499491287 has 2 divisors, whose sum is σ = 499491288. Its totient is φ = 499491286.

The previous prime is 499491283. The next prime is 499491329. The reversal of 499491287 is 782194994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 499491287 - 2² = 499491283 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499491283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249745643 + 249745644.

It is an arithmetic number, because the mean of its divisors is an integer number (249745644).

Almost surely, 2^499491287 is an apocalyptic number.

499491287 is a deficient number, since it is larger than the sum of its proper divisors (1).

499491287 is an equidigital number, since it uses as much as digits as its factorization.

499491287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 53.

The square root of 499491287 is about 22349.3017116867. The cubic root of 499491287 is about 793.4312574594.

The spelling of 499491287 in words is "four hundred ninety-nine million, four hundred ninety-one thousand, two hundred eighty-seven".