84980085 has 16 divisors (see below), whose sum is σ = 139285440. Its totient is φ = 44216960.

The previous prime is 84980081. The next prime is 84980099. The reversal of 84980085 is 58008948.

It is not a de Polignac number, because 84980085 - 2² = 84980081 is a prime.

It is a super-2 number, since 2×84980085² = 14443229693214450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84980081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68475 + ... + 69704.

It is an arithmetic number, because the mean of its divisors is an integer number (8705340).

Almost surely, 2^84980085 is an apocalyptic number.

It is an amenable number.

84980085 is a deficient number, since it is larger than the sum of its proper divisors (54305355).

84980085 is a wasteful number, since it uses less digits than its factorization.

84980085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138228.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 84980085 is about 9218.4643515067. The cubic root of 84980085 is about 439.6486261561.

The spelling of 84980085 in words is "eighty-four million, nine hundred eighty thousand, eighty-five".