8208641 has 4 divisors (see below), whose sum is σ = 9381312. Its totient is φ = 7035972.

The previous prime is 8208619. The next prime is 8208647. The reversal of 8208641 is 1468028.

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 a cyclic number.

It is not a de Polignac number, because 8208641 - 2¹⁴ = 8192257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8208647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586325 + ... + 586338.

It is an arithmetic number, because the mean of its divisors is an integer number (2345328).

Almost surely, 2^8208641 is an apocalyptic number.

It is an amenable number.

8208641 is a deficient number, since it is larger than the sum of its proper divisors (1172671).

8208641 is a wasteful number, since it uses less digits than its factorization.

8208641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172670.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 8208641 is about 2865.0725994292. The cubic root of 8208641 is about 201.7237753098.

The spelling of 8208641 in words is "eight million, two hundred eight thousand, six hundred forty-one".