1606326929 has 2 divisors, whose sum is σ = 1606326930. Its totient is φ = 1606326928.

The previous prime is 1606326893. The next prime is 1606326949. The reversal of 1606326929 is 9296236061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1494982225 + 111344704 = 38665^2 + 10552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1606326929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1606326929.

It is not a weakly prime, because it can be changed into another prime (1606326949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803163464 + 803163465.

It is an arithmetic number, because the mean of its divisors is an integer number (803163465).

Almost surely, 2^1606326929 is an apocalyptic number.

It is an amenable number.

1606326929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606326929 is an equidigital number, since it uses as much as digits as its factorization.

1606326929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 1606326929 is about 40079.0085830476. The cubic root of 1606326929 is about 1171.1467386973.

The spelling of 1606326929 in words is "one billion, six hundred six million, three hundred twenty-six thousand, nine hundred twenty-nine".