8165723 has 2 divisors, whose sum is σ = 8165724. Its totient is φ = 8165722.

The previous prime is 8165711. The next prime is 8165753. The reversal of 8165723 is 3275618.

It is a happy number.

8165723 is digitally balanced in base 3, 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 not a de Polignac number, because 8165723 - 2⁸ = 8165467 is a prime.

It is a super-2 number, since 2×8165723² = 133358064225458, which contains 22 as substring.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 8165723.

It is not a weakly prime, because it can be changed into another prime (8165753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4082861 + 4082862.

It is an arithmetic number, because the mean of its divisors is an integer number (4082862).

Almost surely, 2^8165723 is an apocalyptic number.

8165723 is a deficient number, since it is larger than the sum of its proper divisors (1).

8165723 is an equidigital number, since it uses as much as digits as its factorization.

8165723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 8165723 is about 2857.5729212043. The cubic root of 8165723 is about 201.3715971040.

It can be divided in two parts, 8165 and 723, that added together give a palindrome (8888).

The spelling of 8165723 in words is "eight million, one hundred sixty-five thousand, seven hundred twenty-three".