84940532197 has 2 divisors, whose sum is σ = 84940532198. Its totient is φ = 84940532196.

The previous prime is 84940532141. The next prime is 84940532273. The reversal of 84940532197 is 79123504948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83258794116 + 1681738081 = 288546^2 + 41009^2 .

It is a cyclic number.

It is not a de Polignac number, because 84940532197 - 2¹¹ = 84940530149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84940532107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42470266098 + 42470266099.

It is an arithmetic number, because the mean of its divisors is an integer number (42470266099).

Almost surely, 2^84940532197 is an apocalyptic number.

It is an amenable number.

84940532197 is a deficient number, since it is larger than the sum of its proper divisors (1).

84940532197 is an equidigital number, since it uses as much as digits as its factorization.

84940532197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 84940532197 in words is "eighty-four billion, nine hundred forty million, five hundred thirty-two thousand, one hundred ninety-seven".