8649345 has 32 divisors (see below), whose sum is σ = 14836608. Its totient is φ = 4287488.

The previous prime is 8649343. The next prime is 8649349. The reversal of 8649345 is 5439468.

It is a cyclic number.

It is not a de Polignac number, because 8649345 - 2¹ = 8649343 is a prime.

It is a super-2 number, since 2×8649345² = 149622337858050, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8⁷ + 6⁷ + 4⁸ + 9⁵ + 3⁵ + 4¹¹ + 5⁹ .

8649345 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8649343) 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 in 31 ways as a sum of consecutive naturals, for example, 27127 + ... + 27443.

It is an arithmetic number, because the mean of its divisors is an integer number (463644).

Almost surely, 2^8649345 is an apocalyptic number.

8649345 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8649345 is a deficient number, since it is larger than the sum of its proper divisors (6187263).

8649345 is a wasteful number, since it uses less digits than its factorization.

8649345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449.

The product of its digits is 103680, while the sum is 39.

The square root of 8649345 is about 2940.9768785218. The cubic root of 8649345 is about 205.2710671543.

The spelling of 8649345 in words is "eight million, six hundred forty-nine thousand, three hundred forty-five".