894871641 has 4 divisors (see below), whose sum is σ = 1193162192. Its totient is φ = 596581092.

The previous prime is 894871609. The next prime is 894871651. The reversal of 894871641 is 146178498.

894871641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 894871641 - 2⁵ = 894871609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (894871651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149145271 + ... + 149145276.

It is an arithmetic number, because the mean of its divisors is an integer number (298290548).

Almost surely, 2^894871641 is an apocalyptic number.

It is an amenable number.

894871641 is a deficient number, since it is larger than the sum of its proper divisors (298290551).

894871641 is a wasteful number, since it uses less digits than its factorization.

894871641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298290550.

The product of its digits is 387072, while the sum is 48.

The square root of 894871641 is about 29914.4052422909. The cubic root of 894871641 is about 963.6520473221.

The spelling of 894871641 in words is "eight hundred ninety-four million, eight hundred seventy-one thousand, six hundred forty-one".