8209164 has 24 divisors (see below), whose sum is σ = 20281968. Its totient is φ = 2575360.

The previous prime is 8209151. The next prime is 8209171. The reversal of 8209164 is 4619028.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19917 + ... + 20324.

It is an arithmetic number, because the mean of its divisors is an integer number (845082).

Almost surely, 2^8209164 is an apocalyptic number.

It is an amenable number.

8209164 is an abundant number, since it is smaller than the sum of its proper divisors (12072804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8209164 is a wasteful number, since it uses less digits than its factorization.

8209164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40265 (or 40263 counting only the distinct ones).

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

The square root of 8209164 is about 2865.1638696591. The cubic root of 8209164 is about 201.7280593845.

The spelling of 8209164 in words is "eight million, two hundred nine thousand, one hundred sixty-four".