8191232 has 54 divisors (see below), whose sum is σ = 19049058. Its totient is φ = 3505152.

The previous prime is 8191217. The next prime is 8191259. The reversal of 8191232 is 2321918.

It can be written as a sum of positive squares in only one way, i.e., 6071296 + 2119936 = 2464^2 + 1456^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12218 + ... + 12870.

Almost surely, 2^8191232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8191232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9524529).

8191232 is an abundant number, since it is smaller than the sum of its proper divisors (10857826).

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

8191232 is an equidigital number, since it uses as much as digits as its factorization.

8191232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 662 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 8191232 is about 2862.0328439765. The cubic root of 8191232 is about 201.5810681811.

The spelling of 8191232 in words is "eight million, one hundred ninety-one thousand, two hundred thirty-two".