83280712 has 16 divisors (see below), whose sum is σ = 156397500. Its totient is φ = 41574720.

The previous prime is 83280709. The next prime is 83280713. The reversal of 83280712 is 21708238.

It can be written as a sum of positive squares in 2 ways, for example, as 81108036 + 2172676 = 9006^2 + 1474^2 .

It is not an unprimeable number, because it can be changed into a prime (83280713) 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, 2587 + ... + 13162.

Almost surely, 2^83280712 is an apocalyptic number.

It is an amenable number.

83280712 is a deficient number, since it is larger than the sum of its proper divisors (73116788).

83280712 is a wasteful number, since it uses less digits than its factorization.

83280712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16416 (or 16412 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 83280712 is about 9125.8266474879. The cubic root of 83280712 is about 436.6982750721.

The spelling of 83280712 in words is "eighty-three million, two hundred eighty thousand, seven hundred twelve".