881384947 has 4 divisors (see below), whose sum is σ = 881654776. Its totient is φ = 881115120.

The previous prime is 881384927. The next prime is 881384989. The reversal of 881384947 is 749483188.

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 881384947 - 2¹¹ = 881382899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 881384894 and 881384903.

It is not an unprimeable number, because it can be changed into a prime (881384927) 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, 129954 + ... + 136567.

It is an arithmetic number, because the mean of its divisors is an integer number (220413694).

Almost surely, 2^881384947 is an apocalyptic number.

881384947 is a deficient number, since it is larger than the sum of its proper divisors (269829).

881384947 is a wasteful number, since it uses less digits than its factorization.

881384947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269828.

The product of its digits is 1548288, while the sum is 52.

The square root of 881384947 is about 29688.1280480936. The cubic root of 881384947 is about 958.7864247774.

The spelling of 881384947 in words is "eight hundred eighty-one million, three hundred eighty-four thousand, nine hundred forty-seven".