82104823 has 2 divisors, whose sum is σ = 82104824. Its totient is φ = 82104822.

The previous prime is 82104821. The next prime is 82104851. The reversal of 82104823 is 32840128.

It is an a-pointer prime, because the next prime (82104851) can be obtained adding 82104823 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82104823 - 2¹ = 82104821 is a prime.

It is a super-2 number, since 2×82104823² = 13482403919722658, which contains 22 as substring.

Together with 82104821, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 82104791 and 82104800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82104821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41052411 + 41052412.

It is an arithmetic number, because the mean of its divisors is an integer number (41052412).

Almost surely, 2^82104823 is an apocalyptic number.

82104823 is a deficient number, since it is larger than the sum of its proper divisors (1).

82104823 is an equidigital number, since it uses as much as digits as its factorization.

82104823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 82104823 is about 9061.1711715429. The cubic root of 82104823 is about 434.6331923449.

The spelling of 82104823 in words is "eighty-two million, one hundred four thousand, eight hundred twenty-three".