605928991 has 2 divisors, whose sum is σ = 605928992. Its totient is φ = 605928990.

The previous prime is 605928959. The next prime is 605929003. The reversal of 605928991 is 199829506.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 605928991 - 2⁵ = 605928959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (605928901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302964495 + 302964496.

It is an arithmetic number, because the mean of its divisors is an integer number (302964496).

Almost surely, 2^605928991 is an apocalyptic number.

605928991 is a deficient number, since it is larger than the sum of its proper divisors (1).

605928991 is an equidigital number, since it uses as much as digits as its factorization.

605928991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 49.

The square root of 605928991 is about 24615.6249362067. The cubic root of 605928991 is about 846.2017335108.

The spelling of 605928991 in words is "six hundred five million, nine hundred twenty-eight thousand, nine hundred ninety-one".