881066 has 8 divisors (see below), whose sum is σ = 1325604. Its totient is φ = 439200.

The previous prime is 881057. The next prime is 881071. The reversal of 881066 is 660188.

It can be written as a sum of positive squares in 2 ways, for example, as 674041 + 207025 = 821^2 + 455^2 .

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

It is an unprimeable number.

881066 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 836 + ... + 1568.

2⁸⁸¹⁰⁶⁶ is an apocalyptic number.

881066 is a deficient number, since it is larger than the sum of its proper divisors (444538).

881066 is a wasteful number, since it uses less digits than its factorization.

881066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 881066 is about 938.6511599098. The cubic root of 881066 is about 95.8670758727.

The spelling of 881066 in words is "eight hundred eighty-one thousand, sixty-six".