884045891 has 2 divisors, whose sum is σ = 884045892. Its totient is φ = 884045890.

The previous prime is 884045887. The next prime is 884045909. The reversal of 884045891 is 198540488.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 884045891 - 2² = 884045887 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (884045861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 442022945 + 442022946.

It is an arithmetic number, because the mean of its divisors is an integer number (442022946).

Almost surely, 2^884045891 is an apocalyptic number.

884045891 is a deficient number, since it is larger than the sum of its proper divisors (1).

884045891 is an equidigital number, since it uses as much as digits as its factorization.

884045891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 368640, while the sum is 47.

The square root of 884045891 is about 29732.9092253012. The cubic root of 884045891 is about 959.7503296766.

The spelling of 884045891 in words is "eight hundred eighty-four million, forty-five thousand, eight hundred ninety-one".