8449723 has 2 divisors, whose sum is σ = 8449724. Its totient is φ = 8449722.

The previous prime is 8449711. The next prime is 8449729. The reversal of 8449723 is 3279448.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8449723 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 8⁷ + 4⁴ + 4⁶ + 9² + 7⁸ + 2¹⁹ + 3¹⁰ .

8449723 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8449729) 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, 4224861 + 4224862.

It is an arithmetic number, because the mean of its divisors is an integer number (4224862).

Almost surely, 2^8449723 is an apocalyptic number.

8449723 is a deficient number, since it is larger than the sum of its proper divisors (1).

8449723 is an equidigital number, since it uses as much as digits as its factorization.

8449723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The square root of 8449723 is about 2906.8407249108. The cubic root of 8449723 is about 203.6795799650.

The spelling of 8449723 in words is "eight million, four hundred forty-nine thousand, seven hundred twenty-three".