499331885 has 8 divisors (see below), whose sum is σ = 645290520. Its totient is φ = 368737344.

The previous prime is 499331881. The next prime is 499331887. The reversal of 499331885 is 588133994.

It can be written as a sum of positive squares in 4 ways, for example, as 6980164 + 492351721 = 2642^2 + 22189^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 499331885 - 2² = 499331881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499331881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3840950 + ... + 3841079.

It is an arithmetic number, because the mean of its divisors is an integer number (80661315).

Almost surely, 2^499331885 is an apocalyptic number.

It is an amenable number.

499331885 is a deficient number, since it is larger than the sum of its proper divisors (145958635).

499331885 is a wasteful number, since it uses less digits than its factorization.

499331885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7682047.

The product of its digits is 933120, while the sum is 50.

The square root of 499331885 is about 22345.7352754390. The cubic root of 499331885 is about 793.3468462535.

The spelling of 499331885 in words is "four hundred ninety-nine million, three hundred thirty-one thousand, eight hundred eighty-five".