84393161 has 8 divisors (see below), whose sum is σ = 87539400. Its totient is φ = 81262720.

The previous prime is 84393157. The next prime is 84393163. The reversal of 84393161 is 16139348.

It can be written as a sum of positive squares in 4 ways, for example, as 17480761 + 66912400 = 4181^2 + 8180^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84393161 - 2² = 84393157 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84393163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7541 + ... + 15021.

It is an arithmetic number, because the mean of its divisors is an integer number (10942425).

Almost surely, 2^84393161 is an apocalyptic number.

It is an amenable number.

84393161 is a deficient number, since it is larger than the sum of its proper divisors (3146239).

84393161 is a wasteful number, since it uses less digits than its factorization.

84393161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7899.

The product of its digits is 15552, while the sum is 35.

The square root of 84393161 is about 9186.5750418750. The cubic root of 84393161 is about 438.6341269699.

The spelling of 84393161 in words is "eighty-four million, three hundred ninety-three thousand, one hundred sixty-one".