499949793 has 48 divisors (see below), whose sum is σ = 906984000. Its totient is φ = 270635904.

The previous prime is 499949789. The next prime is 499949797. The reversal of 499949793 is 397949994.

It is an interprime number because it is at equal distance from previous prime (499949789) and next prime (499949797).

It is not a de Polignac number, because 499949793 - 2² = 499949789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 499949793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499949797) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15193 + ... + 35081.

It is an arithmetic number, because the mean of its divisors is an integer number (18895500).

Almost surely, 2^499949793 is an apocalyptic number.

It is an amenable number.

499949793 is a deficient number, since it is larger than the sum of its proper divisors (407034207).

499949793 is a wasteful number, since it uses less digits than its factorization.

499949793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19931 (or 19918 counting only the distinct ones).

The product of its digits is 19840464, while the sum is 63.

The square root of 499949793 is about 22359.5570841643. The cubic root of 499949793 is about 793.6739588800.

The spelling of 499949793 in words is "four hundred ninety-nine million, nine hundred forty-nine thousand, seven hundred ninety-three".