82445633 has 2 divisors, whose sum is σ = 82445634. Its totient is φ = 82445632.

The previous prime is 82445611. The next prime is 82445653. The reversal of 82445633 is 33654428.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44782864 + 37662769 = 6692^2 + 6137^2 .

It is a cyclic number.

It is not a de Polignac number, because 82445633 - 2⁶ = 82445569 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82445593 and 82445602.

It is not a weakly prime, because it can be changed into another prime (82445603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41222816 + 41222817.

It is an arithmetic number, because the mean of its divisors is an integer number (41222817).

Almost surely, 2^82445633 is an apocalyptic number.

It is an amenable number.

82445633 is a deficient number, since it is larger than the sum of its proper divisors (1).

82445633 is an equidigital number, since it uses as much as digits as its factorization.

82445633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 35.

The square root of 82445633 is about 9079.9577642190. The cubic root of 82445633 is about 435.2337370699.

The spelling of 82445633 in words is "eighty-two million, four hundred forty-five thousand, six hundred thirty-three".