894568881 has 4 divisors (see below), whose sum is σ = 1192758512. Its totient is φ = 596379252.

The previous prime is 894568867. The next prime is 894568889. The reversal of 894568881 is 188865498.

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 894568881 - 2¹⁰ = 894567857 is a prime.

It is a super-2 number, since 2×894568881² = 1600506965707184322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (894568889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149094811 + ... + 149094816.

It is an arithmetic number, because the mean of its divisors is an integer number (298189628).

Almost surely, 2^894568881 is an apocalyptic number.

It is an amenable number.

894568881 is a deficient number, since it is larger than the sum of its proper divisors (298189631).

894568881 is a wasteful number, since it uses less digits than its factorization.

894568881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298189630.

The product of its digits is 4423680, while the sum is 57.

The square root of 894568881 is about 29909.3443759638. The cubic root of 894568881 is about 963.5433582879.

The spelling of 894568881 in words is "eight hundred ninety-four million, five hundred sixty-eight thousand, eight hundred eighty-one".