84104641 has 2 divisors, whose sum is σ = 84104642. Its totient is φ = 84104640.

The previous prime is 84104633. The next prime is 84104701. The reversal of 84104641 is 14640148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49999041 + 34105600 = 7071^2 + 5840^2 .

It is a cyclic number.

It is not a de Polignac number, because 84104641 - 2³ = 84104633 is a prime.

It is not a weakly prime, because it can be changed into another prime (84104941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42052320 + 42052321.

It is an arithmetic number, because the mean of its divisors is an integer number (42052321).

Almost surely, 2^84104641 is an apocalyptic number.

It is an amenable number.

84104641 is a deficient number, since it is larger than the sum of its proper divisors (1).

84104641 is an equidigital number, since it uses as much as digits as its factorization.

84104641 is an odious number, because the sum of its binary digits is odd.

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

The square root of 84104641 is about 9170.8582477323. The cubic root of 84104641 is about 438.1336945832.

Adding to 84104641 its reverse (14640148), we get a palindrome (98744789).

The spelling of 84104641 in words is "eighty-four million, one hundred four thousand, six hundred forty-one".