499673885 has 4 divisors (see below), whose sum is σ = 599608668. Its totient is φ = 399739104.

The previous prime is 499673851. The next prime is 499673887. The reversal of 499673885 is 588376994.

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

It can be written as a sum of positive squares in 2 ways, for example, as 331349209 + 168324676 = 18203^2 + 12974^2 .

It is a cyclic number.

It is not a de Polignac number, because 499673885 - 2⁶ = 499673821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499673887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49967384 + ... + 49967393.

It is an arithmetic number, because the mean of its divisors is an integer number (149902167).

Almost surely, 2^499673885 is an apocalyptic number.

It is an amenable number.

499673885 is a deficient number, since it is larger than the sum of its proper divisors (99934783).

499673885 is an equidigital number, since it uses as much as digits as its factorization.

499673885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99934782.

The product of its digits is 13063680, while the sum is 59.

The square root of 499673885 is about 22353.3864324849. The cubic root of 499673885 is about 793.5279300232.

The spelling of 499673885 in words is "four hundred ninety-nine million, six hundred seventy-three thousand, eight hundred eighty-five".