881961 has 8 divisors (see below), whose sum is σ = 1237920. Its totient is φ = 556992.

The previous prime is 881953. The next prime is 881963. The reversal of 881961 is 169188.

881961 = T₃₀₄ + T₃₀₅ + ... + T₃₂₁.

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

It is not a de Polignac number, because 881961 - 2³ = 881953 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (881963) 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, 7680 + ... + 7793.

It is an arithmetic number, because the mean of its divisors is an integer number (154740).

2⁸⁸¹⁹⁶¹ is an apocalyptic number.

It is an amenable number.

881961 is a deficient number, since it is larger than the sum of its proper divisors (355959).

881961 is a wasteful number, since it uses less digits than its factorization.

881961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15495.

The product of its digits is 3456, while the sum is 33.

The square root of 881961 is about 939.1277868320. The cubic root of 881961 is about 95.8995259565.

The spelling of 881961 in words is "eight hundred eighty-one thousand, nine hundred sixty-one".