84204161 has 4 divisors (see below), whose sum is σ = 84225024. Its totient is φ = 84183300.

The previous prime is 84204157. The next prime is 84204167. The reversal of 84204161 is 16140248.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84204161 - 2² = 84204157 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 84204161.

It is not an unprimeable number, because it can be changed into a prime (84204167) 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, 2225 + ... + 13166.

It is an arithmetic number, because the mean of its divisors is an integer number (21056256).

Almost surely, 2^84204161 is an apocalyptic number.

It is an amenable number.

84204161 is a deficient number, since it is larger than the sum of its proper divisors (20863).

84204161 is a wasteful number, since it uses less digits than its factorization.

84204161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20862.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 84204161 is about 9176.2825261649. The cubic root of 84204161 is about 438.3064392250.

The spelling of 84204161 in words is "eighty-four million, two hundred four thousand, one hundred sixty-one".