82220167 has 4 divisors (see below), whose sum is σ = 82238976. Its totient is φ = 82201360.

The previous prime is 82220141. The next prime is 82220183. The reversal of 82220167 is 76102228.

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-82220167 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 (82220107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963 + ... + 12859.

It is an arithmetic number, because the mean of its divisors is an integer number (20559744).

Almost surely, 2^82220167 is an apocalyptic number.

82220167 is a deficient number, since it is larger than the sum of its proper divisors (18809).

82220167 is a wasteful number, since it uses less digits than its factorization.

82220167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18808.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 82220167 is about 9067.5336779082. The cubic root of 82220167 is about 434.8366268955.

The spelling of 82220167 in words is "eighty-two million, two hundred twenty thousand, one hundred sixty-seven".