499751923 has 4 divisors (see below), whose sum is σ = 545183928. Its totient is φ = 454319920.

The previous prime is 499751909. The next prime is 499751929. The reversal of 499751923 is 329157994.

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 499751923 - 2⁹ = 499751411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499751929) 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, 22715986 + ... + 22716007.

It is an arithmetic number, because the mean of its divisors is an integer number (136295982).

Almost surely, 2^499751923 is an apocalyptic number.

499751923 is a deficient number, since it is larger than the sum of its proper divisors (45432005).

499751923 is a wasteful number, since it uses less digits than its factorization.

499751923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45432004.

The product of its digits is 612360, while the sum is 49.

The square root of 499751923 is about 22355.1319164079. The cubic root of 499751923 is about 793.5692383718.

The spelling of 499751923 in words is "four hundred ninety-nine million, seven hundred fifty-one thousand, nine hundred twenty-three".