891434841 has 8 divisors (see below), whose sum is σ = 1296632544. Its totient is φ = 540263520.

The previous prime is 891434801. The next prime is 891434861. The reversal of 891434841 is 148434198.

891434841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 891434841 - 2¹³ = 891426649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 891434793 and 891434802.

It is not an unprimeable number, because it can be changed into a prime (891434801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13506556 + ... + 13506621.

It is an arithmetic number, because the mean of its divisors is an integer number (162079068).

Almost surely, 2^891434841 is an apocalyptic number.

It is an amenable number.

891434841 is a deficient number, since it is larger than the sum of its proper divisors (405197703).

891434841 is a wasteful number, since it uses less digits than its factorization.

891434841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27013191.

The product of its digits is 110592, while the sum is 42.

The square root of 891434841 is about 29856.9060855273. The cubic root of 891434841 is about 962.4168130950.

The spelling of 891434841 in words is "eight hundred ninety-one million, four hundred thirty-four thousand, eight hundred forty-one".