502344989 has 4 divisors (see below), whose sum is σ = 519667260. Its totient is φ = 485022720.

The previous prime is 502344959. The next prime is 502345033. The reversal of 502344989 is 989443205.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 989443205 = 5 ⋅197888641.

It can be written as a sum of positive squares in 2 ways, for example, as 421973764 + 80371225 = 20542^2 + 8965^2 .

It is a cyclic number.

It is not a de Polignac number, because 502344989 - 2¹² = 502340893 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 (502344949) 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, 8661092 + ... + 8661149.

It is an arithmetic number, because the mean of its divisors is an integer number (129916815).

Almost surely, 2^502344989 is an apocalyptic number.

It is an amenable number.

502344989 is a deficient number, since it is larger than the sum of its proper divisors (17322271).

502344989 is a wasteful number, since it uses less digits than its factorization.

502344989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17322270.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 502344989 is about 22413.0539864607. The cubic root of 502344989 is about 794.9394038963.

The spelling of 502344989 in words is "five hundred two million, three hundred forty-four thousand, nine hundred eighty-nine".