881665328 has 40 divisors (see below), whose sum is σ = 1753392240. Its totient is φ = 429327360.

The previous prime is 881665313. The next prime is 881665363. The reversal of 881665328 is 823566188.

It is a super-4 number, since 4×881665328⁴ (a number of 37 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90788 + ... + 100028.

It is an arithmetic number, because the mean of its divisors is an integer number (43834806).

Almost surely, 2^881665328 is an apocalyptic number.

It is an amenable number.

881665328 is a deficient number, since it is larger than the sum of its proper divisors (871726912).

881665328 is a wasteful number, since it uses less digits than its factorization.

881665328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9405 (or 9399 counting only the distinct ones).

The product of its digits is 552960, while the sum is 47.

The square root of 881665328 is about 29692.8497790293. The cubic root of 881665328 is about 958.8880818331. Note that the first 3 decimals are identical.

The spelling of 881665328 in words is "eight hundred eighty-one million, six hundred sixty-five thousand, three hundred twenty-eight".