83221441 has 4 divisors (see below), whose sum is σ = 84079492. Its totient is φ = 82363392.

The previous prime is 83221427. The next prime is 83221451. The reversal of 83221441 is 14412238.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55353600 + 27867841 = 7440^2 + 5279^2 .

It is a cyclic number.

It is not a de Polignac number, because 83221441 - 2¹¹ = 83219393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83221451) 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, 428880 + ... + 429073.

It is an arithmetic number, because the mean of its divisors is an integer number (21019873).

Almost surely, 2^83221441 is an apocalyptic number.

It is an amenable number.

83221441 is a deficient number, since it is larger than the sum of its proper divisors (858051).

83221441 is an equidigital number, since it uses as much as digits as its factorization.

83221441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858050.

The product of its digits is 1536, while the sum is 25.

The square root of 83221441 is about 9122.5786376441. The cubic root of 83221441 is about 436.5946508926.

Adding to 83221441 its reverse (14412238), we get a palindrome (97633679).

The spelling of 83221441 in words is "eighty-three million, two hundred twenty-one thousand, four hundred forty-one".