8440673 has 2 divisors, whose sum is σ = 8440674. Its totient is φ = 8440672.

The previous prime is 8440669. The next prime is 8440703. The reversal of 8440673 is 3760448.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6932689 + 1507984 = 2633^2 + 1228^2 .

It is a cyclic number.

It is not a de Polignac number, because 8440673 - 2² = 8440669 is a prime.

It is not a weakly prime, because it can be changed into another prime (8440603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4220336 + 4220337.

It is an arithmetic number, because the mean of its divisors is an integer number (4220337).

Almost surely, 2^8440673 is an apocalyptic number.

It is an amenable number.

8440673 is a deficient number, since it is larger than the sum of its proper divisors (1).

8440673 is an equidigital number, since it uses as much as digits as its factorization.

8440673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 8440673 is about 2905.2836350346. The cubic root of 8440673 is about 203.6068375933.

The spelling of 8440673 in words is "eight million, four hundred forty thousand, six hundred seventy-three".