83278484 has 12 divisors (see below), whose sum is σ = 146716500. Its totient is φ = 41359488.

The previous prime is 83278471. The next prime is 83278499. The reversal of 83278484 is 48487238.

It can be written as a sum of positive squares in 2 ways, for example, as 8282884 + 74995600 = 2878^2 + 8660^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69269 + ... + 70460.

It is an arithmetic number, because the mean of its divisors is an integer number (12226375).

Almost surely, 2^83278484 is an apocalyptic number.

It is an amenable number.

83278484 is a deficient number, since it is larger than the sum of its proper divisors (63438016).

83278484 is a wasteful number, since it uses less digits than its factorization.

83278484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139882 (or 139880 counting only the distinct ones).

The product of its digits is 344064, while the sum is 44.

The square root of 83278484 is about 9125.7045755383. The cubic root of 83278484 is about 436.6943807233.

The spelling of 83278484 in words is "eighty-three million, two hundred seventy-eight thousand, four hundred eighty-four".