4089973 has 2 divisors, whose sum is σ = 4089974. Its totient is φ = 4089972.

The previous prime is 4089949. The next prime is 4090001. The reversal of 4089973 is 3799804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3992004 + 97969 = 1998^2 + 313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4089973 is a prime.

4089973 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4089073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2044986 + 2044987.

It is an arithmetic number, because the mean of its divisors is an integer number (2044987).

Almost surely, 2^4089973 is an apocalyptic number.

It is an amenable number.

4089973 is a deficient number, since it is larger than the sum of its proper divisors (1).

4089973 is an equidigital number, since it uses as much as digits as its factorization.

4089973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 4089973 is about 2022.3681662843. The cubic root of 4089973 is about 159.9214849149.

The spelling of 4089973 in words is "four million, eighty-nine thousand, nine hundred seventy-three".