499996791 has 24 divisors (see below), whose sum is σ = 827342880. Its totient is φ = 285037056.

The previous prime is 499996789. The next prime is 499996807. The reversal of 499996791 is 197699994.

It is not a de Polignac number, because 499996791 - 2¹ = 499996789 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499996781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18115 + ... + 36443.

It is an arithmetic number, because the mean of its divisors is an integer number (34472620).

Almost surely, 2^499996791 is an apocalyptic number.

499996791 is a deficient number, since it is larger than the sum of its proper divisors (327346089).

499996791 is a wasteful number, since it uses less digits than its factorization.

499996791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18775 (or 18772 counting only the distinct ones).

The product of its digits is 9920232, while the sum is 63.

The square root of 499996791 is about 22360.6080194614. The cubic root of 499996791 is about 793.6988279905.

The spelling of 499996791 in words is "four hundred ninety-nine million, nine hundred ninety-six thousand, seven hundred ninety-one".