82391282 has 24 divisors (see below), whose sum is σ = 133822044. Its totient is φ = 37912832.

The previous prime is 82391269. The next prime is 82391357. The reversal of 82391282 is 28219328.

It can be written as a sum of positive squares in 2 ways, for example, as 82283041 + 108241 = 9071^2 + 329^2 .

It is a super-3 number, since 3×82391282³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 74558 + ... + 75654.

Almost surely, 2^82391282 is an apocalyptic number.

82391282 is a deficient number, since it is larger than the sum of its proper divisors (51430762).

82391282 is a wasteful number, since it uses less digits than its factorization.

82391282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210 (or 1163 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 82391282 is about 9076.9643604016. The cubic root of 82391282 is about 435.1380756906.

The spelling of 82391282 in words is "eighty-two million, three hundred ninety-one thousand, two hundred eighty-two".