1606171379 has 2 divisors, whose sum is σ = 1606171380. Its totient is φ = 1606171378.

The previous prime is 1606171321. The next prime is 1606171381. The reversal of 1606171379 is 9731716061.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1606171379 - 2⁸ = 1606171123 is a prime.

Together with 1606171381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1606171309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803085689 + 803085690.

It is an arithmetic number, because the mean of its divisors is an integer number (803085690).

Almost surely, 2^1606171379 is an apocalyptic number.

1606171379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606171379 is an equidigital number, since it uses as much as digits as its factorization.

1606171379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 1606171379 is about 40077.0679940537. The cubic root of 1606171379 is about 1171.1089344885.

The spelling of 1606171379 in words is "one billion, six hundred six million, one hundred seventy-one thousand, three hundred seventy-nine".