881659 has 4 divisors (see below), whose sum is σ = 920016. Its totient is φ = 843304.

The previous prime is 881641. The next prime is 881663. The reversal of 881659 is 956188.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 881659 - 2⁹ = 881147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (881669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19144 + ... + 19189.

It is an arithmetic number, because the mean of its divisors is an integer number (230004).

2⁸⁸¹⁶⁵⁹ is an apocalyptic number.

881659 is a deficient number, since it is larger than the sum of its proper divisors (38357).

881659 is a wasteful number, since it uses less digits than its factorization.

881659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38356.

The product of its digits is 17280, while the sum is 37.

The square root of 881659 is about 938.9669855751. The cubic root of 881659 is about 95.8885787743. Note that the first 3 decimals are identical.

Subtracting 881659 from its reverse (956188), we obtain a square (74529 = 273²).

It can be divided in two parts, 881 and 659, that added together give a triangular number (1540 = T₅₅).

The spelling of 881659 in words is "eight hundred eighty-one thousand, six hundred fifty-nine".