82911443 has 2 divisors, whose sum is σ = 82911444. Its totient is φ = 82911442.

The previous prime is 82911403. The next prime is 82911463. The reversal of 82911443 is 34411928.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82911443 - 2¹² = 82907347 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (82911403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41455721 + 41455722.

It is an arithmetic number, because the mean of its divisors is an integer number (41455722).

Almost surely, 2^82911443 is an apocalyptic number.

82911443 is a deficient number, since it is larger than the sum of its proper divisors (1).

82911443 is an equidigital number, since it uses as much as digits as its factorization.

82911443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 82911443 is about 9105.5720852674. The cubic root of 82911443 is about 436.0518746319.

The spelling of 82911443 in words is "eighty-two million, nine hundred eleven thousand, four hundred forty-three".