82274317 has 4 divisors (see below), whose sum is σ = 82294396. Its totient is φ = 82254240.

The previous prime is 82274293. The next prime is 82274323. The reversal of 82274317 is 71347228.

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 1022121 + 81252196 = 1011^2 + 9014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82274317 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 (82274327) 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, 1434 + ... + 12907.

It is an arithmetic number, because the mean of its divisors is an integer number (20573599).

Almost surely, 2^82274317 is an apocalyptic number.

82274317 is the 5737-th heptagonal number.

It is an amenable number.

82274317 is a deficient number, since it is larger than the sum of its proper divisors (20079).

82274317 is a wasteful number, since it uses less digits than its factorization.

82274317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20078.

The product of its digits is 18816, while the sum is 34.

The square root of 82274317 is about 9070.5191141412. The cubic root of 82274317 is about 434.9320667245.

It can be divided in two parts, 8227 and 4317, that added together give a square (12544 = 112²).

The spelling of 82274317 in words is "eighty-two million, two hundred seventy-four thousand, three hundred seventeen".