84405165 has 16 divisors (see below), whose sum is σ = 145436928. Its totient is φ = 41553216.

The previous prime is 84405127. The next prime is 84405199. The reversal of 84405165 is 56150448.

It is not a de Polignac number, because 84405165 - 2²⁰ = 83356589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216229 + ... + 216618.

It is an arithmetic number, because the mean of its divisors is an integer number (9089808).

Almost surely, 2^84405165 is an apocalyptic number.

It is an amenable number.

84405165 is a deficient number, since it is larger than the sum of its proper divisors (61031763).

84405165 is a wasteful number, since it uses less digits than its factorization.

84405165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432868.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 84405165 is about 9187.2283633313. The cubic root of 84405165 is about 438.6549229458.

The spelling of 84405165 in words is "eighty-four million, four hundred five thousand, one hundred sixty-five".