894113881 has 2 divisors, whose sum is σ = 894113882. Its totient is φ = 894113880.

The previous prime is 894113867. The next prime is 894113887. The reversal of 894113881 is 188311498.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519110656 + 375003225 = 22784^2 + 19365^2 .

It is a cyclic number.

It is not a de Polignac number, because 894113881 - 2⁹ = 894113369 is a prime.

It is a super-2 number, since 2×894113881² = 1598879264393764322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (894113887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447056940 + 447056941.

It is an arithmetic number, because the mean of its divisors is an integer number (447056941).

Almost surely, 2^894113881 is an apocalyptic number.

It is an amenable number.

894113881 is a deficient number, since it is larger than the sum of its proper divisors (1).

894113881 is an equidigital number, since it uses as much as digits as its factorization.

894113881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 43.

The square root of 894113881 is about 29901.7370900087. The cubic root of 894113881 is about 963.3799698716.

It can be divided in two parts, 8941 and 13881, that added together give a palindrome (22822).

The spelling of 894113881 in words is "eight hundred ninety-four million, one hundred thirteen thousand, eight hundred eighty-one".