84394161 has 12 divisors (see below), whose sum is σ = 123273540. Its totient is φ = 55630080.

The previous prime is 84394157. The next prime is 84394169. The reversal of 84394161 is 16149348.

It can be written as a sum of positive squares in 2 ways, for example, as 45643536 + 38750625 = 6756^2 + 6225^2 .

It is not a de Polignac number, because 84394161 - 2² = 84394157 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (84394169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51880 + ... + 53481.

It is an arithmetic number, because the mean of its divisors is an integer number (10272795).

Almost surely, 2^84394161 is an apocalyptic number.

It is an amenable number.

84394161 is a deficient number, since it is larger than the sum of its proper divisors (38879379).

84394161 is a wasteful number, since it uses less digits than its factorization.

84394161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105456 (or 105453 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 84394161 is about 9186.6294689619. The cubic root of 84394161 is about 438.6358594657.

The spelling of 84394161 in words is "eighty-four million, three hundred ninety-four thousand, one hundred sixty-one".