84204227 has 4 divisors (see below), whose sum is σ = 85793040. Its totient is φ = 82615416.

The previous prime is 84204167. The next prime is 84204229. The reversal of 84204227 is 72240248.

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 84204227 - 2¹⁸ = 83942083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84204227.

It is not an unprimeable number, because it can be changed into a prime (84204229) 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, 794327 + ... + 794432.

It is an arithmetic number, because the mean of its divisors is an integer number (21448260).

Almost surely, 2^84204227 is an apocalyptic number.

84204227 is a deficient number, since it is larger than the sum of its proper divisors (1588813).

84204227 is a wasteful number, since it uses less digits than its factorization.

84204227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588812.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 84204227 is about 9176.2861223918. The cubic root of 84204227 is about 438.3065537412.

The spelling of 84204227 in words is "eighty-four million, two hundred four thousand, two hundred twenty-seven".