82672783 has 4 divisors (see below), whose sum is σ = 82691280. Its totient is φ = 82654288.

The previous prime is 82672771. The next prime is 82672829. The reversal of 82672783 is 38727628.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82672783 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 (82673783) 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 3 ways as a sum of consecutive naturals, for example, 2091 + ... + 13027.

It is an arithmetic number, because the mean of its divisors is an integer number (20672820).

Almost surely, 2^82672783 is an apocalyptic number.

82672783 is a deficient number, since it is larger than the sum of its proper divisors (18497).

82672783 is a wasteful number, since it uses less digits than its factorization.

82672783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18496.

The product of its digits is 225792, while the sum is 43.

The square root of 82672783 is about 9092.4574785918. The cubic root of 82672783 is about 435.6330818020.

The spelling of 82672783 in words is "eighty-two million, six hundred seventy-two thousand, seven hundred eighty-three".