83422561 has 2 divisors, whose sum is σ = 83422562. Its totient is φ = 83422560.

The previous prime is 83422543. The next prime is 83422601. The reversal of 83422561 is 16522438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59598400 + 23824161 = 7720^2 + 4881^2 .

It is a cyclic number.

It is not a de Polignac number, because 83422561 - 2⁷ = 83422433 is a prime.

It is not a weakly prime, because it can be changed into another prime (83422511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41711280 + 41711281.

It is an arithmetic number, because the mean of its divisors is an integer number (41711281).

Almost surely, 2^83422561 is an apocalyptic number.

It is an amenable number.

83422561 is a deficient number, since it is larger than the sum of its proper divisors (1).

83422561 is an equidigital number, since it uses as much as digits as its factorization.

83422561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 31.

The square root of 83422561 is about 9133.5951848109. The cubic root of 83422561 is about 436.9460718536.

Adding to 83422561 its reverse (16522438), we get a palindrome (99944999).

The spelling of 83422561 in words is "eighty-three million, four hundred twenty-two thousand, five hundred sixty-one".