606773891 has 2 divisors, whose sum is σ = 606773892. Its totient is φ = 606773890.

The previous prime is 606773863. The next prime is 606773929. The reversal of 606773891 is 198377606.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-606773891 is a prime.

It is not a weakly prime, because it can be changed into another prime (606773851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303386945 + 303386946.

It is an arithmetic number, because the mean of its divisors is an integer number (303386946).

Almost surely, 2^606773891 is an apocalyptic number.

606773891 is a deficient number, since it is larger than the sum of its proper divisors (1).

606773891 is an equidigital number, since it uses as much as digits as its factorization.

606773891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 606773891 is about 24632.7808214988. The cubic root of 606773891 is about 846.5948619708.

The spelling of 606773891 in words is "six hundred six million, seven hundred seventy-three thousand, eight hundred ninety-one".