8440973 has 2 divisors, whose sum is σ = 8440974. Its totient is φ = 8440972.

The previous prime is 8440969. The next prime is 8440979. The reversal of 8440973 is 3790448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7941124 + 499849 = 2818^2 + 707^2 .

It is a cyclic number.

It is not a de Polignac number, because 8440973 - 2² = 8440969 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8440979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4220486 + 4220487.

It is an arithmetic number, because the mean of its divisors is an integer number (4220487).

Almost surely, 2^8440973 is an apocalyptic number.

It is an amenable number.

8440973 is a deficient number, since it is larger than the sum of its proper divisors (1).

8440973 is an equidigital number, since it uses as much as digits as its factorization.

8440973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 8440973 is about 2905.3352646467. The cubic root of 8440973 is about 203.6092497757.

The spelling of 8440973 in words is "eight million, four hundred forty thousand, nine hundred seventy-three".