881711628 has 96 divisors (see below), whose sum is σ = 2424489984. Its totient is φ = 244124928.

The previous prime is 881711609. The next prime is 881711651. The reversal of 881711628 is 826117188.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 881711628.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1140250 + ... + 1141022.

It is an arithmetic number, because the mean of its divisors is an integer number (25255104).

Almost surely, 2^881711628 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 881711628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1212244992).

881711628 is an abundant number, since it is smaller than the sum of its proper divisors (1542778356).

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

881711628 is a wasteful number, since it uses less digits than its factorization.

881711628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191 (or 1189 counting only the distinct ones).

The product of its digits is 43008, while the sum is 42.

The square root of 881711628 is about 29693.6294177724. The cubic root of 881711628 is about 958.9048666378.

The spelling of 881711628 in words is "eight hundred eighty-one million, seven hundred eleven thousand, six hundred twenty-eight".