881623728 has 120 divisors (see below), whose sum is σ = 2526984096. Its totient is φ = 286848000.

The previous prime is 881623703. The next prime is 881623747. The reversal of 881623728 is 827326188.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1466628 + ... + 1467228.

Almost surely, 2^881623728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 881623728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1263492048).

881623728 is an abundant number, since it is smaller than the sum of its proper divisors (1645360368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

881623728 is a wasteful number, since it uses less digits than its factorization.

881623728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 834 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 881623728 is about 29692.1492654203. The cubic root of 881623728 is about 958.8730003843.

The spelling of 881623728 in words is "eight hundred eighty-one million, six hundred twenty-three thousand, seven hundred twenty-eight".