82212433 has 2 divisors, whose sum is σ = 82212434. Its totient is φ = 82212432.

The previous prime is 82212407. The next prime is 82212439. The reversal of 82212433 is 33421228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82029249 + 183184 = 9057^2 + 428^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82212433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82212398 and 82212407.

It is not a weakly prime, because it can be changed into another prime (82212439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41106216 + 41106217.

It is an arithmetic number, because the mean of its divisors is an integer number (41106217).

Almost surely, 2^82212433 is an apocalyptic number.

It is an amenable number.

82212433 is a deficient number, since it is larger than the sum of its proper divisors (1).

82212433 is an equidigital number, since it uses as much as digits as its factorization.

82212433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

The square root of 82212433 is about 9067.1072013074. The cubic root of 82212433 is about 434.8229922361.

The spelling of 82212433 in words is "eighty-two million, two hundred twelve thousand, four hundred thirty-three".