499460991 has 4 divisors (see below), whose sum is σ = 665947992. Its totient is φ = 332973992.

The previous prime is 499460987. The next prime is 499461007. The reversal of 499460991 is 199064994.

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

It is a cyclic number.

It is not a de Polignac number, because 499460991 - 2² = 499460987 is a prime.

It is a super-2 number, since 2×499460991² = 498922563061404162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499460971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83243496 + ... + 83243501.

It is an arithmetic number, because the mean of its divisors is an integer number (166486998).

Almost surely, 2^499460991 is an apocalyptic number.

499460991 is a deficient number, since it is larger than the sum of its proper divisors (166487001).

499460991 is a wasteful number, since it uses less digits than its factorization.

499460991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166487000.

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 499460991 is about 22348.6239173691. The cubic root of 499460991 is about 793.4152156184.

The spelling of 499460991 in words is "four hundred ninety-nine million, four hundred sixty thousand, nine hundred ninety-one".