84016081 has 4 divisors (see below), whose sum is σ = 88438000. Its totient is φ = 79594164.

The previous prime is 84016063. The next prime is 84016087. The reversal of 84016081 is 18061048.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84016081 - 2¹¹ = 84014033 is a prime.

It is a super-3 number, since 3×84016081³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84016087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2210931 + ... + 2210968.

It is an arithmetic number, because the mean of its divisors is an integer number (22109500).

Almost surely, 2^84016081 is an apocalyptic number.

It is an amenable number.

84016081 is a deficient number, since it is larger than the sum of its proper divisors (4421919).

84016081 is a wasteful number, since it uses less digits than its factorization.

84016081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4421918.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 84016081 is about 9166.0286384017. The cubic root of 84016081 is about 437.9798594466.

The spelling of 84016081 in words is "eighty-four million, sixteen thousand, eighty-one".