881129971 has 4 divisors (see below), whose sum is σ = 881413992. Its totient is φ = 880845952.

The previous prime is 881129969. The next prime is 881129989. The reversal of 881129971 is 179921188.

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 881129971 - 2¹ = 881129969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (881129911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137305 + ... + 143578.

It is an arithmetic number, because the mean of its divisors is an integer number (220353498).

Almost surely, 2^881129971 is an apocalyptic number.

881129971 is a deficient number, since it is larger than the sum of its proper divisors (284021).

881129971 is a wasteful number, since it uses less digits than its factorization.

881129971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284020.

The product of its digits is 72576, while the sum is 46.

The square root of 881129971 is about 29683.8334956926. The cubic root of 881129971 is about 958.6939600316.

The spelling of 881129971 in words is "eight hundred eighty-one million, one hundred twenty-nine thousand, nine hundred seventy-one".