82277 has 4 divisors (see below), whose sum is σ = 88620. Its totient is φ = 75936.

The previous prime is 82267. The next prime is 82279. The reversal of 82277 is 77228.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36481 + 45796 = 191^2 + 214^2 .

It is a cyclic number.

It is not a de Polignac number, because 82277 - 2⁴ = 82261 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 (82279) 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, 3152 + ... + 3177.

It is an arithmetic number, because the mean of its divisors is an integer number (22155).

2⁸²²⁷⁷ is an apocalyptic number.

It is an amenable number.

82277 is a deficient number, since it is larger than the sum of its proper divisors (6343).

82277 is a wasteful number, since it uses less digits than its factorization.

82277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6342.

The product of its digits is 1568, while the sum is 26.

The square root of 82277 is about 286.8396764745. The cubic root of 82277 is about 43.4936794446.

Adding to 82277 its product of digits (1568), we get a triangular number (83845 = T₄₀₉).

The spelling of 82277 in words is "eighty-two thousand, two hundred seventy-seven".