499993871 has 8 divisors (see below), whose sum is σ = 538653024. Its totient is φ = 461363040.

The previous prime is 499993867. The next prime is 499993883. The reversal of 499993871 is 178399994.

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 499993871 - 2² = 499993867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499993871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499993841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42485 + ... + 52961.

It is an arithmetic number, because the mean of its divisors is an integer number (67331628).

Almost surely, 2^499993871 is an apocalyptic number.

499993871 is a deficient number, since it is larger than the sum of its proper divisors (38659153).

499993871 is a wasteful number, since it uses less digits than its factorization.

499993871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14161.

The product of its digits is 4408992, while the sum is 59.

The square root of 499993871 is about 22360.5427259716. The cubic root of 499993871 is about 793.6972829105.

The spelling of 499993871 in words is "four hundred ninety-nine million, nine hundred ninety-three thousand, eight hundred seventy-one".