499971673 has 4 divisors (see below), whose sum is σ = 500629428. Its totient is φ = 499313920.

The previous prime is 499971653. The next prime is 499971691. The reversal of 499971673 is 376179994.

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 115498009 + 384473664 = 10747^2 + 19608^2 .

It is a cyclic number.

It is not a de Polignac number, because 499971673 - 2⁹ = 499971161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499971613) 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, 327736 + ... + 329257.

It is an arithmetic number, because the mean of its divisors is an integer number (125157357).

Almost surely, 2^499971673 is an apocalyptic number.

It is an amenable number.

499971673 is a deficient number, since it is larger than the sum of its proper divisors (657755).

499971673 is an equidigital number, since it uses as much as digits as its factorization.

499971673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657754.

The product of its digits is 2571912, while the sum is 55.

The square root of 499971673 is about 22360.0463550503. The cubic root of 499971673 is about 793.6855369312.

The spelling of 499971673 in words is "four hundred ninety-nine million, nine hundred seventy-one thousand, six hundred seventy-three".