8573849 has 2 divisors, whose sum is σ = 8573850. Its totient is φ = 8573848.

The previous prime is 8573843. The next prime is 8573869. The reversal of 8573849 is 9483758.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7661824 + 912025 = 2768^2 + 955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8573849 is a prime.

It is not a weakly prime, because it can be changed into another prime (8573843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4286924 + 4286925.

It is an arithmetic number, because the mean of its divisors is an integer number (4286925).

Almost surely, 2^8573849 is an apocalyptic number.

It is an amenable number.

8573849 is a deficient number, since it is larger than the sum of its proper divisors (1).

8573849 is an equidigital number, since it uses as much as digits as its factorization.

8573849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 8573849 is about 2928.1135565411. The cubic root of 8573849 is about 204.6720833211.

Subtracting 8573849 from its reverse (9483758), we obtain a palindrome (909909).

The spelling of 8573849 in words is "eight million, five hundred seventy-three thousand, eight hundred forty-nine".