881445 has 8 divisors (see below), whose sum is σ = 1410336. Its totient is φ = 470096.

The previous prime is 881437. The next prime is 881449. The reversal of 881445 is 544188.

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

It is a cyclic number.

It is not a de Polignac number, because 881445 - 2³ = 881437 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 881445.

It is not an unprimeable number, because it can be changed into a prime (881449) 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, 29367 + ... + 29396.

It is an arithmetic number, because the mean of its divisors is an integer number (176292).

2⁸⁸¹⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

881445 is a deficient number, since it is larger than the sum of its proper divisors (528891).

881445 is a wasteful number, since it uses less digits than its factorization.

881445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58771.

The product of its digits is 5120, while the sum is 30.

The square root of 881445 is about 938.8530236411. The cubic root of 881445 is about 95.8808199861.

It can be divided in two parts, 881 and 445, that added together give a triangular number (1326 = T₅₁).

The spelling of 881445 in words is "eight hundred eighty-one thousand, four hundred forty-five".