84285811 has 4 divisors (see below), whose sum is σ = 85352800. Its totient is φ = 83218824.

The previous prime is 84285809. The next prime is 84285857. The reversal of 84285811 is 11858248.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 84285811 - 2¹ = 84285809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84285871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533376 + ... + 533533.

It is an arithmetic number, because the mean of its divisors is an integer number (21338200).

Almost surely, 2^84285811 is an apocalyptic number.

84285811 is a deficient number, since it is larger than the sum of its proper divisors (1066989).

84285811 is a wasteful number, since it uses less digits than its factorization.

84285811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066988.

The product of its digits is 20480, while the sum is 37.

The square root of 84285811 is about 9180.7304175648. The cubic root of 84285811 is about 438.4480638952.

The spelling of 84285811 in words is "eighty-four million, two hundred eighty-five thousand, eight hundred eleven".