9940031 has 2 divisors, whose sum is σ = 9940032. Its totient is φ = 9940030.

The previous prime is 9940027. The next prime is 9940039. The reversal of 9940031 is 1300499.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9940031 - 2² = 9940027 is a prime.

It is a super-2 number, since 2×9940031² = 197608432561922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9940039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4970015 + 4970016.

It is an arithmetic number, because the mean of its divisors is an integer number (4970016).

Almost surely, 2^9940031 is an apocalyptic number.

9940031 is a deficient number, since it is larger than the sum of its proper divisors (1).

9940031 is an equidigital number, since it uses as much as digits as its factorization.

9940031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 9940031 is about 3152.7814703845. The cubic root of 9940031 is about 215.0119409268.

The spelling of 9940031 in words is "nine million, nine hundred forty thousand, thirty-one".