881866 has 16 divisors (see below), whose sum is σ = 1454400. Its totient is φ = 399168.

The previous prime is 881849. The next prime is 881897. The reversal of 881866 is 668188.

It is an unprimeable number.

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, 370 + ... + 1378.

It is an arithmetic number, because the mean of its divisors is an integer number (90900).

2⁸⁸¹⁸⁶⁶ is an apocalyptic number.

881866 is a deficient number, since it is larger than the sum of its proper divisors (572534).

881866 is a wasteful number, since it uses less digits than its factorization.

881866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053.

The product of its digits is 18432, while the sum is 37.

The square root of 881866 is about 939.0772066236. The cubic root of 881866 is about 95.8960825759.

The spelling of 881866 in words is "eight hundred eighty-one thousand, eight hundred sixty-six".