83217982 has 4 divisors (see below), whose sum is σ = 124826976. Its totient is φ = 41608990.

The previous prime is 83217977. The next prime is 83217989. The reversal of 83217982 is 28971238.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83217989) 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, 20804494 + ... + 20804497.

It is an arithmetic number, because the mean of its divisors is an integer number (31206744).

Almost surely, 2^83217982 is an apocalyptic number.

83217982 is a deficient number, since it is larger than the sum of its proper divisors (41608994).

83217982 is a wasteful number, since it uses less digits than its factorization.

83217982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41608993.

The product of its digits is 48384, while the sum is 40.

The square root of 83217982 is about 9122.3890511203. The cubic root of 83217982 is about 436.5886019634.

The spelling of 83217982 in words is "eighty-three million, two hundred seventeen thousand, nine hundred eighty-two".