881647 has 4 divisors (see below), whose sum is σ = 949480. Its totient is φ = 813816.

The previous prime is 881641. The next prime is 881663. The reversal of 881647 is 746188.

It is a happy number.

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 881647 - 2¹⁵ = 848879 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881641) 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, 33897 + ... + 33922.

It is an arithmetic number, because the mean of its divisors is an integer number (237370).

2⁸⁸¹⁶⁴⁷ is an apocalyptic number.

881647 is a deficient number, since it is larger than the sum of its proper divisors (67833).

881647 is a wasteful number, since it uses less digits than its factorization.

881647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67832.

The product of its digits is 10752, while the sum is 34.

The square root of 881647 is about 938.9605955523. The cubic root of 881647 is about 95.8881437353. Note that the first 3 decimals are identical.

The spelling of 881647 in words is "eight hundred eighty-one thousand, six hundred forty-seven".