894438823 has 2 divisors, whose sum is σ = 894438824. Its totient is φ = 894438822.

The previous prime is 894438781. The next prime is 894438841. The reversal of 894438823 is 328834498.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 894438823 - 2²⁵ = 860884391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (894438893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447219411 + 447219412.

It is an arithmetic number, because the mean of its divisors is an integer number (447219412).

Almost surely, 2^894438823 is an apocalyptic number.

894438823 is a deficient number, since it is larger than the sum of its proper divisors (1).

894438823 is an equidigital number, since it uses as much as digits as its factorization.

894438823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1327104, while the sum is 49.

The square root of 894438823 is about 29907.1700934742. The cubic root of 894438823 is about 963.4966607116.

The spelling of 894438823 in words is "eight hundred ninety-four million, four hundred thirty-eight thousand, eight hundred twenty-three".