82985111 has 8 divisors (see below), whose sum is σ = 90595584. Its totient is φ = 75385720.

The previous prime is 82985101. The next prime is 82985131. The reversal of 82985111 is 11158928.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82985111 - 2¹⁰ = 82984087 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 (82985101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25376 + ... + 28458.

It is an arithmetic number, because the mean of its divisors is an integer number (11324448).

Almost surely, 2^82985111 is an apocalyptic number.

82985111 is a deficient number, since it is larger than the sum of its proper divisors (7610473).

82985111 is a wasteful number, since it uses less digits than its factorization.

82985111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5541.

The product of its digits is 5760, while the sum is 35.

The square root of 82985111 is about 9109.6164024617. The cubic root of 82985111 is about 436.1809825053.

The spelling of 82985111 in words is "eighty-two million, nine hundred eighty-five thousand, one hundred eleven".