84013 has 4 divisors (see below), whose sum is σ = 86940. Its totient is φ = 81088.

The previous prime is 84011. The next prime is 84017. The reversal of 84013 is 31048.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24964 + 59049 = 158^2 + 243^2 .

It is a cyclic number.

It is not a de Polignac number, because 84013 - 2¹ = 84011 is a prime.

It is a Duffinian number.

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 (84011) 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 3 ways as a sum of consecutive naturals, for example, 1420 + ... + 1477.

It is an arithmetic number, because the mean of its divisors is an integer number (21735).

2⁸⁴⁰¹³ is an apocalyptic number.

It is an amenable number.

84013 is a deficient number, since it is larger than the sum of its proper divisors (2927).

84013 is a wasteful number, since it uses less digits than its factorization.

84013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 84013 is about 289.8499611868. The cubic root of 84013 is about 43.7974505581.

The spelling of 84013 in words is "eighty-four thousand, thirteen".