499500421 has 4 divisors (see below), whose sum is σ = 570857632. Its totient is φ = 428143212.

The previous prime is 499500413. The next prime is 499500473. The reversal of 499500421 is 124005994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 499500421 - 2³ = 499500413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499500401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35678595 + ... + 35678608.

It is an arithmetic number, because the mean of its divisors is an integer number (142714408).

Almost surely, 2^499500421 is an apocalyptic number.

It is an amenable number.

499500421 is a deficient number, since it is larger than the sum of its proper divisors (71357211).

499500421 is an equidigital number, since it uses as much as digits as its factorization.

499500421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71357210.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 499500421 is about 22349.5060571817. The cubic root of 499500421 is about 793.4360938180.

The spelling of 499500421 in words is "four hundred ninety-nine million, five hundred thousand, four hundred twenty-one".