84069 has 6 divisors (see below), whose sum is σ = 121446. Its totient is φ = 56040.

The previous prime is 84067. The next prime is 84089. The reversal of 84069 is 96048.

It can be written as a sum of positive squares in only one way, i.e., 65025 + 19044 = 255^2 + 138^2 .

It is not a de Polignac number, because 84069 - 2¹ = 84067 is a prime.

It is a super-2 number, since 2×84069² = 14135193522, which contains 22 as substring.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4662 + ... + 4679.

It is an arithmetic number, because the mean of its divisors is an integer number (20241).

2⁸⁴⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

84069 is a deficient number, since it is larger than the sum of its proper divisors (37377).

84069 is a wasteful number, since it uses less digits than its factorization.

84069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9347 (or 9344 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 84069 is about 289.9465467979. The cubic root of 84069 is about 43.8071796575.

It can be divided in two parts, 840 and 69, that added together give a palindrome (909).

The spelling of 84069 in words is "eighty-four thousand, sixty-nine".