499637393 has 2 divisors, whose sum is σ = 499637394. Its totient is φ = 499637392.

The previous prime is 499637353. The next prime is 499637399. The reversal of 499637393 is 393736994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 427166224 + 72471169 = 20668^2 + 8513^2 .

It is a cyclic number.

It is not a de Polignac number, because 499637393 - 2¹⁴ = 499621009 is a prime.

It is not a weakly prime, because it can be changed into another prime (499637399) 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, 249818696 + 249818697.

It is an arithmetic number, because the mean of its divisors is an integer number (249818697).

Almost surely, 2^499637393 is an apocalyptic number.

It is an amenable number.

499637393 is a deficient number, since it is larger than the sum of its proper divisors (1).

499637393 is an equidigital number, since it uses as much as digits as its factorization.

499637393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3306744, while the sum is 53.

The square root of 499637393 is about 22352.5701654195. The cubic root of 499637393 is about 793.5086120060.

The spelling of 499637393 in words is "four hundred ninety-nine million, six hundred thirty-seven thousand, three hundred ninety-three".