83240191 has 8 divisors (see below), whose sum is σ = 84294000. Its totient is φ = 82193280.

The previous prime is 83240189. The next prime is 83240231. The reversal of 83240191 is 19104238.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83240191 - 2¹ = 83240189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83240111) 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 in 7 ways as a sum of consecutive naturals, for example, 25111 + ... + 28231.

It is an arithmetic number, because the mean of its divisors is an integer number (10536750).

Almost surely, 2^83240191 is an apocalyptic number.

83240191 is a deficient number, since it is larger than the sum of its proper divisors (1053809).

83240191 is a wasteful number, since it uses less digits than its factorization.

83240191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449.

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

The square root of 83240191 is about 9123.6062497238. The cubic root of 83240191 is about 436.6274370549.

The spelling of 83240191 in words is "eighty-three million, two hundred forty thousand, one hundred ninety-one".