84272111 has 36 divisors (see below), whose sum is σ = 113813496. Its totient is φ = 61689600.

The previous prime is 84272107. The next prime is 84272129. The reversal of 84272111 is 11127248.

It is not a de Polignac number, because 84272111 - 2² = 84272107 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 (84272191) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 155501 + ... + 156041.

It is an arithmetic number, because the mean of its divisors is an integer number (3161486).

Almost surely, 2^84272111 is an apocalyptic number.

84272111 is a deficient number, since it is larger than the sum of its proper divisors (29541385).

84272111 is a wasteful number, since it uses less digits than its factorization.

84272111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 576 counting only the distinct ones).

The product of its digits is 896, while the sum is 26.

The square root of 84272111 is about 9179.9842592458. The cubic root of 84272111 is about 438.4243071724.

Adding to 84272111 its reverse (11127248), we get a palindrome (95399359).

The spelling of 84272111 in words is "eighty-four million, two hundred seventy-two thousand, one hundred eleven".