502272989 has 2 divisors, whose sum is σ = 502272990. Its totient is φ = 502272988.

The previous prime is 502272949. The next prime is 502273003. The reversal of 502272989 is 989272205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 469588900 + 32684089 = 21670^2 + 5717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-502272989 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (502272949) 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 as a sum of consecutive naturals, namely, 251136494 + 251136495.

It is an arithmetic number, because the mean of its divisors is an integer number (251136495).

Almost surely, 2^502272989 is an apocalyptic number.

It is an amenable number.

502272989 is a deficient number, since it is larger than the sum of its proper divisors (1).

502272989 is an equidigital number, since it uses as much as digits as its factorization.

502272989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 502272989 is about 22411.4477220906. The cubic root of 502272989 is about 794.9014231109.

The spelling of 502272989 in words is "five hundred two million, two hundred seventy-two thousand, nine hundred eighty-nine".