4091323 has 2 divisors, whose sum is σ = 4091324. Its totient is φ = 4091322.

The previous prime is 4091317. The next prime is 4091357. The reversal of 4091323 is 3231904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4091323 - 2¹⁷ = 3960251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4091294 and 4091303.

It is not a weakly prime, because it can be changed into another prime (4091383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2045661 + 2045662.

It is an arithmetic number, because the mean of its divisors is an integer number (2045662).

Almost surely, 2^4091323 is an apocalyptic number.

4091323 is a deficient number, since it is larger than the sum of its proper divisors (1).

4091323 is an equidigital number, since it uses as much as digits as its factorization.

4091323 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 22.

The square root of 4091323 is about 2022.7019058675. The cubic root of 4091323 is about 159.9390783689.

The spelling of 4091323 in words is "four million, ninety-one thousand, three hundred twenty-three".