84197 has 4 divisors (see below), whose sum is σ = 84780. Its totient is φ = 83616.

The previous prime is 84191. The next prime is 84199. The reversal of 84197 is 79148.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2401 + 81796 = 49^2 + 286^2 .

It is a cyclic number.

It is not a de Polignac number, because 84197 - 2⁴ = 84181 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 (84191) 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, 113 + ... + 425.

It is an arithmetic number, because the mean of its divisors is an integer number (21195).

2⁸⁴¹⁹⁷ is an apocalyptic number.

It is an amenable number.

84197 is a deficient number, since it is larger than the sum of its proper divisors (583).

84197 is a wasteful number, since it uses less digits than its factorization.

84197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582.

The product of its digits is 2016, while the sum is 29.

The square root of 84197 is about 290.1671931835. The cubic root of 84197 is about 43.8294013864.

The spelling of 84197 in words is "eighty-four thousand, one hundred ninety-seven".