104820647 has 2 divisors, whose sum is σ = 104820648. Its totient is φ = 104820646.

The previous prime is 104820607. The next prime is 104820649. The reversal of 104820647 is 746028401.

It is a strong prime.

It is an emirp because it is prime and its reverse (746028401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104820647 - 2¹⁶ = 104755111 is a prime.

Together with 104820649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104820649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52410323 + 52410324.

It is an arithmetic number, because the mean of its divisors is an integer number (52410324).

Almost surely, 2^104820647 is an apocalyptic number.

104820647 is a deficient number, since it is larger than the sum of its proper divisors (1).

104820647 is an equidigital number, since it uses as much as digits as its factorization.

104820647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 104820647 is about 10238.1954953009. The cubic root of 104820647 is about 471.5006314308.

The spelling of 104820647 in words is "one hundred four million, eight hundred twenty thousand, six hundred forty-seven".