1606429117 has 2 divisors, whose sum is σ = 1606429118. Its totient is φ = 1606429116.

The previous prime is 1606429087. The next prime is 1606429141. The reversal of 1606429117 is 7119246061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1604723481 + 1705636 = 40059^2 + 1306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1606429117 is a prime.

It is a super-2 number, since 2×1606429117² = 5161229015890799378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1606429817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803214558 + 803214559.

It is an arithmetic number, because the mean of its divisors is an integer number (803214559).

Almost surely, 2^1606429117 is an apocalyptic number.

It is an amenable number.

1606429117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606429117 is an equidigital number, since it uses as much as digits as its factorization.

1606429117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1606429117 is about 40080.2833947067. The cubic root of 1606429117 is about 1171.1715727048.

The spelling of 1606429117 in words is "one billion, six hundred six million, four hundred twenty-nine thousand, one hundred seventeen".