606329993 has 2 divisors, whose sum is σ = 606329994. Its totient is φ = 606329992.

The previous prime is 606329987. The next prime is 606330029. The reversal of 606329993 is 399923606.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 443818489 + 162511504 = 21067^2 + 12748^2 .

It is a cyclic number.

It is not a de Polignac number, because 606329993 - 2¹⁶ = 606264457 is a prime.

It is a super-2 number, since 2×606329993² = 735272120822760098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (606319993) 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, 303164996 + 303164997.

It is an arithmetic number, because the mean of its divisors is an integer number (303164997).

Almost surely, 2^606329993 is an apocalyptic number.

It is an amenable number.

606329993 is a deficient number, since it is larger than the sum of its proper divisors (1).

606329993 is an equidigital number, since it uses as much as digits as its factorization.

606329993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472392, while the sum is 47.

The square root of 606329993 is about 24623.7688626254. The cubic root of 606329993 is about 846.3883636080.

The spelling of 606329993 in words is "six hundred six million, three hundred twenty-nine thousand, nine hundred ninety-three".