82831211 has 16 divisors (see below), whose sum is σ = 88216128. Its totient is φ = 77616000.

The previous prime is 82831207. The next prime is 82831223. The reversal of 82831211 is 11213828.

It is a cyclic number.

It is not a de Polignac number, because 82831211 - 2² = 82831207 is a prime.

It is a super-2 number, since 2×82831211² = 13722019031453042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82831291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420365 + ... + 420561.

It is an arithmetic number, because the mean of its divisors is an integer number (5513508).

Almost surely, 2^82831211 is an apocalyptic number.

82831211 is a deficient number, since it is larger than the sum of its proper divisors (5384917).

82831211 is a wasteful number, since it uses less digits than its factorization.

82831211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502.

The product of its digits is 768, while the sum is 26.

The square root of 82831211 is about 9101.1653649409. The cubic root of 82831211 is about 435.9111758987.

The spelling of 82831211 in words is "eighty-two million, eight hundred thirty-one thousand, two hundred eleven".