605621099 has 2 divisors, whose sum is σ = 605621100. Its totient is φ = 605621098.

The previous prime is 605621041. The next prime is 605621111. The reversal of 605621099 is 990126506.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 605621099 - 2¹² = 605617003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (605621299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302810549 + 302810550.

It is an arithmetic number, because the mean of its divisors is an integer number (302810550).

Almost surely, 2^605621099 is an apocalyptic number.

605621099 is a deficient number, since it is larger than the sum of its proper divisors (1).

605621099 is an equidigital number, since it uses as much as digits as its factorization.

605621099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 605621099 is about 24609.3701463487. The cubic root of 605621099 is about 846.0583817926.

The spelling of 605621099 in words is "six hundred five million, six hundred twenty-one thousand, ninety-nine".