605728881 has 8 divisors (see below), whose sum is σ = 897376160. Its totient is φ = 403819236.

The previous prime is 605728867. The next prime is 605728901. The reversal of 605728881 is 188827506.

It is not a de Polignac number, because 605728881 - 2⁶ = 605728817 is a prime.

It is a super-2 number, since 2×605728881² = 733814954555024322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (605728801) 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, 11217175 + ... + 11217228.

It is an arithmetic number, because the mean of its divisors is an integer number (112172020).

Almost surely, 2^605728881 is an apocalyptic number.

It is an amenable number.

605728881 is a deficient number, since it is larger than the sum of its proper divisors (291647279).

605728881 is a wasteful number, since it uses less digits than its factorization.

605728881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22434412 (or 22434406 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The square root of 605728881 is about 24611.5599058654. The cubic root of 605728881 is about 846.1085696386.

The spelling of 605728881 in words is "six hundred five million, seven hundred twenty-eight thousand, eight hundred eighty-one".