84080081 has 4 divisors (see below), whose sum is σ = 84260592. Its totient is φ = 83899572.

The previous prime is 84080041. The next prime is 84080083. The reversal of 84080081 is 18008048.

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 84080081 - 2¹⁰ = 84079057 is a prime.

It is a super-2 number, since 2×84080081² = 14138920041933122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84080083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89555 + ... + 90488.

It is an arithmetic number, because the mean of its divisors is an integer number (21065148).

Almost surely, 2^84080081 is an apocalyptic number.

It is an amenable number.

84080081 is a deficient number, since it is larger than the sum of its proper divisors (180511).

84080081 is a wasteful number, since it uses less digits than its factorization.

84080081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180510.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 84080081 is about 9169.5191258866. The cubic root of 84080081 is about 438.0910429094.

The spelling of 84080081 in words is "eighty-four million, eighty thousand, eighty-one".