8191342 has 4 divisors (see below), whose sum is σ = 12287016. Its totient is φ = 4095670.

The previous prime is 8191333. The next prime is 8191343. The reversal of 8191342 is 2431918.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8191342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8191343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2047834 + ... + 2047837.

It is an arithmetic number, because the mean of its divisors is an integer number (3071754).

Almost surely, 2^8191342 is an apocalyptic number.

8191342 is a deficient number, since it is larger than the sum of its proper divisors (4095674).

8191342 is a wasteful number, since it uses less digits than its factorization.

8191342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4095673.

The product of its digits is 1728, while the sum is 28.

The square root of 8191342 is about 2862.0520610220. The cubic root of 8191342 is about 201.5819705206.

The spelling of 8191342 in words is "eight million, one hundred ninety-one thousand, three hundred forty-two".