82247 has 4 divisors (see below), whose sum is σ = 89736. Its totient is φ = 74760.

The previous prime is 82241. The next prime is 82261. The reversal of 82247 is 74228.

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

It is a cyclic number.

It is not a de Polignac number, because 82247 - 2⁴ = 82231 is a prime.

It is a d-powerful number, because it can be written as 8² + 2¹⁴ + 2¹⁶ + 4⁴ + 7 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3728 + ... + 3749.

It is an arithmetic number, because the mean of its divisors is an integer number (22434).

2⁸²²⁴⁷ is an apocalyptic number.

82247 is a deficient number, since it is larger than the sum of its proper divisors (7489).

82247 is a wasteful number, since it uses less digits than its factorization.

82247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7488.

The product of its digits is 896, while the sum is 23.

The square root of 82247 is about 286.7873776860. The cubic root of 82247 is about 43.4883925519.

The spelling of 82247 in words is "eighty-two thousand, two hundred forty-seven".