605813849 has 2 divisors, whose sum is σ = 605813850. Its totient is φ = 605813848.

The previous prime is 605813843. The next prime is 605813867. The reversal of 605813849 is 948318506.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 564917824 + 40896025 = 23768^2 + 6395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-605813849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (605813843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302906924 + 302906925.

It is an arithmetic number, because the mean of its divisors is an integer number (302906925).

Almost surely, 2^605813849 is an apocalyptic number.

It is an amenable number.

605813849 is a deficient number, since it is larger than the sum of its proper divisors (1).

605813849 is an equidigital number, since it uses as much as digits as its factorization.

605813849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 605813849 is about 24613.2860260470. The cubic root of 605813849 is about 846.1481301273.

The spelling of 605813849 in words is "six hundred five million, eight hundred thirteen thousand, eight hundred forty-nine".