938989 has 2 divisors, whose sum is σ = 938990. Its totient is φ = 938988.

The previous prime is 938983. The next prime is 939007. The reversal of 938989 is 989839.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 828100 + 110889 = 910^2 + 333^2 .

It is an emirp because it is prime and its reverse (989839) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 938989 - 2³ = 938981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (938981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469494 + 469495.

It is an arithmetic number, because the mean of its divisors is an integer number (469495).

2⁹³⁸⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

938989 is a deficient number, since it is larger than the sum of its proper divisors (1).

938989 is an equidigital number, since it uses as much as digits as its factorization.

938989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 46.

The square root of 938989 is about 969.0144477767. The cubic root of 938989 is about 97.9234790693.

The spelling of 938989 in words is "nine hundred thirty-eight thousand, nine hundred eighty-nine".