502873221 has 4 divisors (see below), whose sum is σ = 670497632. Its totient is φ = 335248812.

The previous prime is 502873213. The next prime is 502873303. The reversal of 502873221 is 122378205.

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 502873221 - 2³ = 502873213 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 (502873211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83812201 + ... + 83812206.

It is an arithmetic number, because the mean of its divisors is an integer number (167624408).

Almost surely, 2^502873221 is an apocalyptic number.

It is an amenable number.

502873221 is a deficient number, since it is larger than the sum of its proper divisors (167624411).

502873221 is a wasteful number, since it uses less digits than its factorization.

502873221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167624410.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 502873221 is about 22424.8349157803. The cubic root of 502873221 is about 795.2179411184.

The spelling of 502873221 in words is "five hundred two million, eight hundred seventy-three thousand, two hundred twenty-one".