9939031 has 2 divisors, whose sum is σ = 9939032. Its totient is φ = 9939030.

The previous prime is 9939029. The next prime is 9939047. The reversal of 9939031 is 1309399.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9939031 - 2¹ = 9939029 is a prime.

It is a super-2 number, since 2×9939031² = 197568674437922, which contains 22 as substring.

Together with 9939029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9939011) 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, 4969515 + 4969516.

It is an arithmetic number, because the mean of its divisors is an integer number (4969516).

Almost surely, 2^9939031 is an apocalyptic number.

9939031 is a deficient number, since it is larger than the sum of its proper divisors (1).

9939031 is an equidigital number, since it uses as much as digits as its factorization.

9939031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6561, while the sum is 34.

The square root of 9939031 is about 3152.6228762730. The cubic root of 9939031 is about 215.0047303809.

The spelling of 9939031 in words is "nine million, nine hundred thirty-nine thousand, thirty-one".