9640031 has 2 divisors, whose sum is σ = 9640032. Its totient is φ = 9640030.

The previous prime is 9640021. The next prime is 9640051. The reversal of 9640031 is 1300469.

9640031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9640031 is a prime.

It is a super-2 number, since 2×9640031² = 185860395361922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9639979 and 9640006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9640021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4820015 + 4820016.

It is an arithmetic number, because the mean of its divisors is an integer number (4820016).

Almost surely, 2^9640031 is an apocalyptic number.

9640031 is a deficient number, since it is larger than the sum of its proper divisors (1).

9640031 is an equidigital number, since it uses as much as digits as its factorization.

9640031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 9640031 is about 3104.8399314618. The cubic root of 9640031 is about 212.8267158758.

The spelling of 9640031 in words is "nine million, six hundred forty thousand, thirty-one".