499539771 has 16 divisors (see below), whose sum is σ = 740812800. Its totient is φ = 332687304.

The previous prime is 499539769. The next prime is 499539779. The reversal of 499539771 is 177935994.

It is a happy number.

It is not a de Polignac number, because 499539771 - 2¹ = 499539769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (499539779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19150 + ... + 36956.

It is an arithmetic number, because the mean of its divisors is an integer number (46300800).

Almost surely, 2^499539771 is an apocalyptic number.

499539771 is a deficient number, since it is larger than the sum of its proper divisors (241273029).

499539771 is a wasteful number, since it uses less digits than its factorization.

499539771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18855 (or 18849 counting only the distinct ones).

The product of its digits is 2143260, while the sum is 54.

The square root of 499539771 is about 22350.3863724992. The cubic root of 499539771 is about 793.4569285622.

The spelling of 499539771 in words is "four hundred ninety-nine million, five hundred thirty-nine thousand, seven hundred seventy-one".