8191164 has 12 divisors (see below), whose sum is σ = 19112744. Its totient is φ = 2730384.

The previous prime is 8191133. The next prime is 8191181. The reversal of 8191164 is 4611918.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341287 + ... + 341310.

Almost surely, 2^8191164 is an apocalyptic number.

It is an amenable number.

8191164 is an abundant number, since it is smaller than the sum of its proper divisors (10921580).

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

8191164 is a wasteful number, since it uses less digits than its factorization.

8191164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682604 (or 682602 counting only the distinct ones).

The product of its digits is 1728, while the sum is 30.

The square root of 8191164 is about 2862.0209642838. The cubic root of 8191164 is about 201.5805103671.

The spelling of 8191164 in words is "eight million, one hundred ninety-one thousand, one hundred sixty-four".