83804445 has 24 divisors (see below), whose sum is σ = 149189976. Its totient is φ = 43486848.

The previous prime is 83804443. The next prime is 83804453. The reversal of 83804445 is 54440838.

It can be written as a sum of positive squares in 4 ways, for example, as 35070084 + 48734361 = 5922^2 + 6981^2 .

It is not a de Polignac number, because 83804445 - 2¹ = 83804443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83804443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23502 + ... + 26831.

It is an arithmetic number, because the mean of its divisors is an integer number (6216249).

Almost surely, 2^83804445 is an apocalyptic number.

It is an amenable number.

83804445 is a deficient number, since it is larger than the sum of its proper divisors (65385531).

83804445 is a wasteful number, since it uses less digits than its factorization.

83804445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50381 (or 50378 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 83804445 is about 9154.4767736884. The cubic root of 83804445 is about 437.6117940160.

The spelling of 83804445 in words is "eighty-three million, eight hundred four thousand, four hundred forty-five".