499949539 has 4 divisors (see below), whose sum is σ = 508423320. Its totient is φ = 491475760.

The previous prime is 499949509. The next prime is 499949561. The reversal of 499949539 is 935949994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 499949539 - 2⁵ = 499949507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499949509) 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 3 ways as a sum of consecutive naturals, for example, 4236802 + ... + 4236919.

It is an arithmetic number, because the mean of its divisors is an integer number (127105830).

Almost surely, 2^499949539 is an apocalyptic number.

499949539 is a deficient number, since it is larger than the sum of its proper divisors (8473781).

499949539 is an equidigital number, since it uses as much as digits as its factorization.

499949539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8473780.

The product of its digits is 14171760, while the sum is 61.

The square root of 499949539 is about 22359.5514042657. The cubic root of 499949539 is about 793.6738244710.

The spelling of 499949539 in words is "four hundred ninety-nine million, nine hundred forty-nine thousand, five hundred thirty-nine".