10640023 has 2 divisors, whose sum is σ = 10640024. Its totient is φ = 10640022.

The previous prime is 10640009. The next prime is 10640029. The reversal of 10640023 is 32004601.

10640023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10640023 is a prime.

It is a super-2 number, since 2×10640023² = 226420178881058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10639979 and 10640006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10640029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5320011 + 5320012.

It is an arithmetic number, because the mean of its divisors is an integer number (5320012).

Almost surely, 2^10640023 is an apocalyptic number.

10640023 is a deficient number, since it is larger than the sum of its proper divisors (1).

10640023 is an equidigital number, since it uses as much as digits as its factorization.

10640023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 10640023 is about 3261.9048116093. The cubic root of 10640023 is about 219.9450482587.

Adding to 10640023 its reverse (32004601), we get a palindrome (42644624).

The spelling of 10640023 in words is "ten million, six hundred forty thousand, twenty-three".