881889 has 8 divisors (see below), whose sum is σ = 1227072. Its totient is φ = 562320.

The previous prime is 881849. The next prime is 881897. The reversal of 881889 is 988188.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 881889 - 2¹⁶ = 816353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 881889.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 881889.

It is not an unprimeable number, because it can be changed into a prime (881849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6322 + ... + 6459.

It is an arithmetic number, because the mean of its divisors is an integer number (153384).

2⁸⁸¹⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

881889 is a deficient number, since it is larger than the sum of its proper divisors (345183).

881889 is a wasteful number, since it uses less digits than its factorization.

881889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12807.

The product of its digits is 36864, while the sum is 42.

The square root of 881889 is about 939.0894526082. The cubic root of 881889 is about 95.8969162592.

It can be divided in two parts, 881 and 889, that added together give a triangular number (1770 = T₅₉).

The spelling of 881889 in words is "eight hundred eighty-one thousand, eight hundred eighty-nine".