8191382 has 16 divisors (see below), whose sum is σ = 13160880. Its totient is φ = 3810048.

The previous prime is 8191363. The next prime is 8191387. The reversal of 8191382 is 2831918.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8191387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1673 + ... + 4379.

It is an arithmetic number, because the mean of its divisors is an integer number (822555).

Almost surely, 2^8191382 is an apocalyptic number.

8191382 is a deficient number, since it is larger than the sum of its proper divisors (4969498).

8191382 is a wasteful number, since it uses less digits than its factorization.

8191382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815.

The product of its digits is 3456, while the sum is 32.

The square root of 8191382 is about 2862.0590490065. The cubic root of 8191382 is about 201.5822986421.

The spelling of 8191382 in words is "eight million, one hundred ninety-one thousand, three hundred eighty-two".