606163391 has 2 divisors, whose sum is σ = 606163392. Its totient is φ = 606163390.

The previous prime is 606163387. The next prime is 606163409. The reversal of 606163391 is 193361606.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 606163391 - 2² = 606163387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (606163351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303081695 + 303081696.

It is an arithmetic number, because the mean of its divisors is an integer number (303081696).

Almost surely, 2^606163391 is an apocalyptic number.

606163391 is a deficient number, since it is larger than the sum of its proper divisors (1).

606163391 is an equidigital number, since it uses as much as digits as its factorization.

606163391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 606163391 is about 24620.3856793512. The cubic root of 606163391 is about 846.3108354672.

The spelling of 606163391 in words is "six hundred six million, one hundred sixty-three thousand, three hundred ninety-one".