82273661 has 2 divisors, whose sum is σ = 82273662. Its totient is φ = 82273660.

The previous prime is 82273651. The next prime is 82273669. The reversal of 82273661 is 16637228.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71995225 + 10278436 = 8485^2 + 3206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82273661 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82273669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41136830 + 41136831.

It is an arithmetic number, because the mean of its divisors is an integer number (41136831).

Almost surely, 2^82273661 is an apocalyptic number.

It is an amenable number.

82273661 is a deficient number, since it is larger than the sum of its proper divisors (1).

82273661 is an equidigital number, since it uses as much as digits as its factorization.

82273661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 82273661 is about 9070.4829529634. The cubic root of 82273661 is about 434.9309107696.

The spelling of 82273661 in words is "eighty-two million, two hundred seventy-three thousand, six hundred sixty-one".