84536197 has 4 divisors (see below), whose sum is σ = 84656140. Its totient is φ = 84416256.

The previous prime is 84536173. The next prime is 84536239. The reversal of 84536197 is 79163548.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11792356 + 72743841 = 3434^2 + 8529^2 .

It is a cyclic number.

It is not a de Polignac number, because 84536197 - 2⁷ = 84536069 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 (84536147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58908 + ... + 60325.

It is an arithmetic number, because the mean of its divisors is an integer number (21164035).

Almost surely, 2^84536197 is an apocalyptic number.

It is an amenable number.

84536197 is a deficient number, since it is larger than the sum of its proper divisors (119943).

84536197 is a wasteful number, since it uses less digits than its factorization.

84536197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119942.

The product of its digits is 181440, while the sum is 43.

The square root of 84536197 is about 9194.3568018649. The cubic root of 84536197 is about 438.8817973490.

The spelling of 84536197 in words is "eighty-four million, five hundred thirty-six thousand, one hundred ninety-seven".