881747856 has 240 divisors, whose sum is σ = 2851692480. Its totient is φ = 261480960.

The previous prime is 881747827. The next prime is 881747869. The reversal of 881747856 is 658747188.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2266510 + ... + 2266898.

It is an arithmetic number, because the mean of its divisors is an integer number (11882052).

Almost surely, 2^881747856 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 881747856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425846240).

881747856 is an abundant number, since it is smaller than the sum of its proper divisors (1969944624).

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

881747856 is a wasteful number, since it uses less digits than its factorization.

881747856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 458 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 54.

The square root of 881747856 is about 29694.2394413462. The cubic root of 881747856 is about 958.9179997033.

The spelling of 881747856 in words is "eight hundred eighty-one million, seven hundred forty-seven thousand, eight hundred fifty-six".