83816244 has 18 divisors (see below), whose sum is σ = 211868930. Its totient is φ = 27938736.

The previous prime is 83816237. The next prime is 83816261. The reversal of 83816244 is 44261838.

It can be written as a sum of positive squares in only one way, i.e., 51667344 + 32148900 = 7188^2 + 5670^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2328229 = 83816244 / (8 + 3 + 8 + 1 + 6 + 2 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 83816199 and 83816208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1164079 + ... + 1164150.

Almost surely, 2^83816244 is an apocalyptic number.

It is an amenable number.

83816244 is an abundant number, since it is smaller than the sum of its proper divisors (128052686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83816244 is a wasteful number, since it uses less digits than its factorization.

83816244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328239 (or 2328234 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 83816244 is about 9155.1211898041. The cubic root of 83816244 is about 437.6323304734.

The spelling of 83816244 in words is "eighty-three million, eight hundred sixteen thousand, two hundred forty-four".