82039111 has 16 divisors (see below), whose sum is σ = 104463360. Its totient is φ = 62563680.

The previous prime is 82039103. The next prime is 82039117. The reversal of 82039111 is 11193028.

It is a cyclic number.

It is not a de Polignac number, because 82039111 - 2³ = 82039103 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 (82039117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7716 + ... + 14953.

It is an arithmetic number, because the mean of its divisors is an integer number (6528960).

Almost surely, 2^82039111 is an apocalyptic number.

82039111 is a deficient number, since it is larger than the sum of its proper divisors (22424249).

82039111 is a wasteful number, since it uses less digits than its factorization.

82039111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22734.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 82039111 is about 9057.5444244011. The cubic root of 82039111 is about 434.5172095556.

The spelling of 82039111 in words is "eighty-two million, thirty-nine thousand, one hundred eleven".