841861728 has 96 divisors (see below), whose sum is σ = 2584713600. Its totient is φ = 265845888.

The previous prime is 841861721. The next prime is 841861729. The reversal of 841861728 is 827168148.

841861728 is a `hidden beast` number, since 8 + 4 + 1 + 8 + 617 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×841861728² = 1417462338142291968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (841861721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9226 + ... + 42057.

It is an arithmetic number, because the mean of its divisors is an integer number (26924100).

Almost surely, 2^841861728 is an apocalyptic number.

It is an amenable number.

841861728 is an abundant number, since it is smaller than the sum of its proper divisors (1742851872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

841861728 is a wasteful number, since it uses less digits than its factorization.

841861728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51321 (or 51307 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 841861728 is about 29014.8535753672. The cubic root of 841861728 is about 944.2353502059.

The spelling of 841861728 in words is "eight hundred forty-one million, eight hundred sixty-one thousand, seven hundred twenty-eight".