83222761 has 2 divisors, whose sum is σ = 83222762. Its totient is φ = 83222760.

The previous prime is 83222753. The next prime is 83222767. The reversal of 83222761 is 16722238.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48930025 + 34292736 = 6995^2 + 5856^2 .

It is a cyclic number.

It is not a de Polignac number, because 83222761 - 2³ = 83222753 is a prime.

It is not a weakly prime, because it can be changed into another prime (83222767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41611380 + 41611381.

It is an arithmetic number, because the mean of its divisors is an integer number (41611381).

Almost surely, 2^83222761 is an apocalyptic number.

It is an amenable number.

83222761 is a deficient number, since it is larger than the sum of its proper divisors (1).

83222761 is an equidigital number, since it uses as much as digits as its factorization.

83222761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 83222761 is about 9122.6509853222. The cubic root of 83222761 is about 436.5969591996.

Adding to 83222761 its reverse (16722238), we get a palindrome (99944999).

The spelling of 83222761 in words is "eighty-three million, two hundred twenty-two thousand, seven hundred sixty-one".