939247 has 2 divisors, whose sum is σ = 939248. Its totient is φ = 939246.

The previous prime is 939229. The next prime is 939287. The reversal of 939247 is 742939.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 939247 - 2⁷ = 939119 is a prime.

939247 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (939287) 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, 469623 + 469624.

It is an arithmetic number, because the mean of its divisors is an integer number (469624).

2⁹³⁹²⁴⁷ is an apocalyptic number.

939247 is a deficient number, since it is larger than the sum of its proper divisors (1).

939247 is an equidigital number, since it uses as much as digits as its factorization.

939247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 939247 is about 969.1475635836. The cubic root of 939247 is about 97.9324468506.

The spelling of 939247 in words is "nine hundred thirty-nine thousand, two hundred forty-seven".