82885111 has 4 divisors (see below), whose sum is σ = 84648672. Its totient is φ = 81121552.

The previous prime is 82885093. The next prime is 82885129. The reversal of 82885111 is 11158828.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (82885093) and next prime (82885129).

It is a cyclic number.

It is not a de Polignac number, because 82885111 - 2¹⁹ = 82360823 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 (82885181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881710 + ... + 881803.

It is an arithmetic number, because the mean of its divisors is an integer number (21162168).

Almost surely, 2^82885111 is an apocalyptic number.

82885111 is a deficient number, since it is larger than the sum of its proper divisors (1763561).

82885111 is a wasteful number, since it uses less digits than its factorization.

82885111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763560.

The product of its digits is 5120, while the sum is 34.

The square root of 82885111 is about 9104.1260426248. The cubic root of 82885111 is about 436.0057075677.

The spelling of 82885111 in words is "eighty-two million, eight hundred eighty-five thousand, one hundred eleven".