881279985 has 32 divisors (see below), whose sum is σ = 1464531840. Its totient is φ = 451985408.

The previous prime is 881279981. The next prime is 881279999. The reversal of 881279985 is 589972188.

881279985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 881279985 - 2² = 881279981 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (881279981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107854 + ... + 115736.

It is an arithmetic number, because the mean of its divisors is an integer number (45766620).

Almost surely, 2^881279985 is an apocalyptic number.

It is an amenable number.

881279985 is a deficient number, since it is larger than the sum of its proper divisors (583251855).

881279985 is a wasteful number, since it uses less digits than its factorization.

881279985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8177.

The product of its digits is 2903040, while the sum is 57.

The square root of 881279985 is about 29686.3602518059. The cubic root of 881279985 is about 958.7483634150.

The spelling of 881279985 in words is "eight hundred eighty-one million, two hundred seventy-nine thousand, nine hundred eighty-five".