83280916 has 12 divisors (see below), whose sum is σ = 145827360. Its totient is φ = 41615960.

The previous prime is 83280889. The next prime is 83280917. The reversal of 83280916 is 61908238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83280917) 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, 3051 + ... + 13261.

It is an arithmetic number, because the mean of its divisors is an integer number (12152280).

Almost surely, 2^83280916 is an apocalyptic number.

It is an amenable number.

83280916 is a deficient number, since it is larger than the sum of its proper divisors (62546444).

83280916 is a wasteful number, since it uses less digits than its factorization.

83280916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12254 (or 12252 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 83280916 is about 9125.8378245507. The cubic root of 83280916 is about 436.6986316428.

The spelling of 83280916 in words is "eighty-three million, two hundred eighty thousand, nine hundred sixteen".