84365289 has 6 divisors (see below), whose sum is σ = 121860986. Its totient is φ = 56243520.

The previous prime is 84365243. The next prime is 84365293. The reversal of 84365289 is 98256348.

84365289 is a `hidden beast` number, since 8 + 4 + 365 + 289 = 666.

It can be written as a sum of positive squares in only one way, i.e., 74649600 + 9715689 = 8640^2 + 3117^2 .

It is not a de Polignac number, because 84365289 - 2²⁰ = 83316713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84365189) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4686952 + ... + 4686969.

Almost surely, 2^84365289 is an apocalyptic number.

It is an amenable number.

84365289 is a deficient number, since it is larger than the sum of its proper divisors (37495697).

84365289 is a wasteful number, since it uses less digits than its factorization.

84365289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373927 (or 9373924 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 84365289 is about 9185.0579203400. The cubic root of 84365289 is about 438.5858333389.

The spelling of 84365289 in words is "eighty-four million, three hundred sixty-five thousand, two hundred eighty-nine".