499901217 has 16 divisors (see below), whose sum is σ = 696358080. Its totient is φ = 318584000.

The previous prime is 499901203. The next prime is 499901219. The reversal of 499901217 is 712109994.

It is a cyclic number.

It is not a de Polignac number, because 499901217 - 2¹⁸ = 499639073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (499901219) 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, 19659 + ... + 37232.

It is an arithmetic number, because the mean of its divisors is an integer number (43522380).

Almost surely, 2^499901217 is an apocalyptic number.

It is an amenable number.

499901217 is a deficient number, since it is larger than the sum of its proper divisors (196456863).

499901217 is a wasteful number, since it uses less digits than its factorization.

499901217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57024.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 499901217 is about 22358.4708108582. The cubic root of 499901217 is about 793.6482531288.

The spelling of 499901217 in words is "four hundred ninety-nine million, nine hundred one thousand, two hundred seventeen".