8201649 has 8 divisors (see below), whose sum is σ = 11121120. Its totient is φ = 5374976.

The previous prime is 8201647. The next prime is 8201663. The reversal of 8201649 is 9461028.

8201649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8201649 - 2¹ = 8201647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8201647) 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 7 ways as a sum of consecutive naturals, for example, 22992 + ... + 23345.

It is an arithmetic number, because the mean of its divisors is an integer number (1390140).

Almost surely, 2^8201649 is an apocalyptic number.

It is an amenable number.

8201649 is a deficient number, since it is larger than the sum of its proper divisors (2919471).

8201649 is a wasteful number, since it uses less digits than its factorization.

8201649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46399.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 8201649 is about 2863.8521260708. The cubic root of 8201649 is about 201.6664839225. Note that the first 3 decimals are identical.

The spelling of 8201649 in words is "eight million, two hundred one thousand, six hundred forty-nine".