884736641 has 2 divisors, whose sum is σ = 884736642. Its totient is φ = 884736640.

The previous prime is 884736623. The next prime is 884736659. The reversal of 884736641 is 146637488.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (884736623) and next prime (884736659).

It can be written as a sum of positive squares in only one way, i.e., 870486016 + 14250625 = 29504^2 + 3775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-884736641 is a prime.

It is not a weakly prime, because it can be changed into another prime (884736841) 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, 442368320 + 442368321.

It is an arithmetic number, because the mean of its divisors is an integer number (442368321).

Almost surely, 2^884736641 is an apocalyptic number.

It is an amenable number.

884736641 is a deficient number, since it is larger than the sum of its proper divisors (1).

884736641 is an equidigital number, since it uses as much as digits as its factorization.

884736641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 47.

The square root of 884736641 is about 29744.5228739679. The cubic root of 884736641 is about 960.0002318431. Note that the first 3 decimals are identical.

The spelling of 884736641 in words is "eight hundred eighty-four million, seven hundred thirty-six thousand, six hundred forty-one".