8453849 has 2 divisors, whose sum is σ = 8453850. Its totient is φ = 8453848.

The previous prime is 8453821. The next prime is 8453873. The reversal of 8453849 is 9483548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7463824 + 990025 = 2732^2 + 995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8453849 is a prime.

It is not a weakly prime, because it can be changed into another prime (8456849) 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, 4226924 + 4226925.

It is an arithmetic number, because the mean of its divisors is an integer number (4226925).

Almost surely, 2^8453849 is an apocalyptic number.

It is an amenable number.

8453849 is a deficient number, since it is larger than the sum of its proper divisors (1).

8453849 is an equidigital number, since it uses as much as digits as its factorization.

8453849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 41.

The square root of 8453849 is about 2907.5503435022. The cubic root of 8453849 is about 203.7127268188.

The spelling of 8453849 in words is "eight million, four hundred fifty-three thousand, eight hundred forty-nine".