499928999 has 16 divisors (see below), whose sum is σ = 523545120. Its totient is φ = 476784000.

The previous prime is 499928959. The next prime is 499929011. The reversal of 499928999 is 999829994.

It is a cyclic number.

It is not a de Polignac number, because 499928999 - 2²⁸ = 231493543 is a prime.

It is a super-2 number, since 2×499928999² = 499858008082284002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499928959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1259069 + ... + 1259465.

It is an arithmetic number, because the mean of its divisors is an integer number (32721570).

Almost surely, 2^499928999 is an apocalyptic number.

499928999 is a deficient number, since it is larger than the sum of its proper divisors (23616121).

499928999 is a wasteful number, since it uses less digits than its factorization.

499928999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850.

The product of its digits is 34012224, while the sum is 68.

The square root of 499928999 is about 22359.0920880075. The cubic root of 499928999 is about 793.6629551850.

The spelling of 499928999 in words is "four hundred ninety-nine million, nine hundred twenty-eight thousand, nine hundred ninety-nine".