8646249 has 4 divisors (see below), whose sum is σ = 11528336. Its totient is φ = 5764164.

The previous prime is 8646247. The next prime is 8646257. The reversal of 8646249 is 9426468.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8646249 - 2¹ = 8646247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8646247) 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 in 3 ways as a sum of consecutive naturals, for example, 1441039 + ... + 1441044.

It is an arithmetic number, because the mean of its divisors is an integer number (2882084).

Almost surely, 2^8646249 is an apocalyptic number.

It is an amenable number.

8646249 is a deficient number, since it is larger than the sum of its proper divisors (2882087).

8646249 is a wasteful number, since it uses less digits than its factorization.

8646249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882086.

The product of its digits is 82944, while the sum is 39.

The square root of 8646249 is about 2940.4504756925. The cubic root of 8646249 is about 205.2465722334.

The spelling of 8646249 in words is "eight million, six hundred forty-six thousand, two hundred forty-nine".