84387227843 has 4 divisors (see below), whose sum is σ = 89351182440. Its totient is φ = 79423273248.

The previous prime is 84387227791. The next prime is 84387227857. The reversal of 84387227843 is 34872278348.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84387227843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84387227443) 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, 2481977273 + ... + 2481977306.

It is an arithmetic number, because the mean of its divisors is an integer number (22337795610).

Almost surely, 2^84387227843 is an apocalyptic number.

84387227843 is a deficient number, since it is larger than the sum of its proper divisors (4963954597).

84387227843 is a wasteful number, since it uses less digits than its factorization.

84387227843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4963954596.

The product of its digits is 14450688, while the sum is 56.

The spelling of 84387227843 in words is "eighty-four billion, three hundred eighty-seven million, two hundred twenty-seven thousand, eight hundred forty-three".