827730881 has 8 divisors (see below), whose sum is σ = 831583584. Its totient is φ = 823888000.

The previous prime is 827730859. The next prime is 827730887. The reversal of 827730881 is 188037728.

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 827730881 - 2⁶ = 827730817 is a prime.

It is a super-2 number, since 2×827730881² = 1370276822722072322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (827730887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204881 + ... + 208881.

It is an arithmetic number, because the mean of its divisors is an integer number (103947948).

Almost surely, 2^827730881 is an apocalyptic number.

It is an amenable number.

827730881 is a deficient number, since it is larger than the sum of its proper divisors (3852703).

827730881 is a wasteful number, since it uses less digits than its factorization.

827730881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4911.

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 827730881 is about 28770.3124939581. The cubic root of 827730881 is about 938.9224414735.

The spelling of 827730881 in words is "eight hundred twenty-seven million, seven hundred thirty thousand, eight hundred eighty-one".