82831311 has 12 divisors (see below), whose sum is σ = 119992600. Its totient is φ = 55060560.

The previous prime is 82831291. The next prime is 82831367. The reversal of 82831311 is 11313828.

It is not a de Polignac number, because 82831311 - 2⁶ = 82831247 is a prime.

It is a super-2 number, since 2×82831311² = 13722052163957442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82831391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10045 + ... + 16326.

Almost surely, 2^82831311 is an apocalyptic number.

82831311 is a deficient number, since it is larger than the sum of its proper divisors (37161289).

82831311 is a wasteful number, since it uses less digits than its factorization.

82831311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26726 (or 26723 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 82831311 is about 9101.1708587412. The cubic root of 82831311 is about 435.9113513201.

The spelling of 82831311 in words is "eighty-two million, eight hundred thirty-one thousand, three hundred eleven".