83416881 has 16 divisors (see below), whose sum is σ = 113166720. Its totient is φ = 54645120.

The previous prime is 83416873. The next prime is 83416889. The reversal of 83416881 is 18861438.

It is an interprime number because it is at equal distance from previous prime (83416873) and next prime (83416889).

It is not a de Polignac number, because 83416881 - 2³ = 83416873 is a prime.

It is a super-2 number, since 2×83416881² = 13916752071536322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83416889) 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, 78091 + ... + 79151.

It is an arithmetic number, because the mean of its divisors is an integer number (7072920).

Almost surely, 2^83416881 is an apocalyptic number.

It is an amenable number.

83416881 is a deficient number, since it is larger than the sum of its proper divisors (29749839).

83416881 is a wasteful number, since it uses less digits than its factorization.

83416881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496.

The product of its digits is 36864, while the sum is 39.

The square root of 83416881 is about 9133.2842395274. The cubic root of 83416881 is about 436.9361548320.

The spelling of 83416881 in words is "eighty-three million, four hundred sixteen thousand, eight hundred eighty-one".