84015 has 12 divisors (see below), whose sum is σ = 145704. Its totient is φ = 44784.

The previous prime is 84011. The next prime is 84017. The reversal of 84015 is 51048.

It is not a de Polignac number, because 84015 - 2² = 84011 is a prime.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 889 + ... + 978.

It is an arithmetic number, because the mean of its divisors is an integer number (12142).

2⁸⁴⁰¹⁵ is an apocalyptic number.

84015 is a deficient number, since it is larger than the sum of its proper divisors (61689).

84015 is a wasteful number, since it uses less digits than its factorization.

84015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878 (or 1875 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 84015 is about 289.8534112271. The cubic root of 84015 is about 43.7977981004.

The spelling of 84015 in words is "eighty-four thousand, fifteen".