502789 has 12 divisors (see below), whose sum is σ = 605568. Its totient is φ = 415800.

The previous prime is 502787. The next prime is 502807. The reversal of 502789 is 987205.

It is not a de Polignac number, because 502789 - 2¹ = 502787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 502789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1354 + ... + 1684.

It is an arithmetic number, because the mean of its divisors is an integer number (50464).

2⁵⁰²⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

502789 is a deficient number, since it is larger than the sum of its proper divisors (102779).

502789 is a wasteful number, since it uses less digits than its factorization.

502789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 502789 is about 709.0761595203. The cubic root of 502789 is about 79.5173544382.

Subtracting 502789 from its reverse (987205), we obtain a square (484416 = 696²).

The spelling of 502789 in words is "five hundred two thousand, seven hundred eighty-nine".