1606424737 has 2 divisors, whose sum is σ = 1606424738. Its totient is φ = 1606424736.

The previous prime is 1606424717. The next prime is 1606424761. The reversal of 1606424737 is 7374246061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1438229776 + 168194961 = 37924^2 + 12969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1606424737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1606424737.

It is not a weakly prime, because it can be changed into another prime (1606424717) 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, 803212368 + 803212369.

It is an arithmetic number, because the mean of its divisors is an integer number (803212369).

Almost surely, 2^1606424737 is an apocalyptic number.

It is an amenable number.

1606424737 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606424737 is an equidigital number, since it uses as much as digits as its factorization.

1606424737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 1606424737 is about 40080.2287543372. The cubic root of 1606424737 is about 1171.1705082869.

The spelling of 1606424737 in words is "one billion, six hundred six million, four hundred twenty-four thousand, seven hundred thirty-seven".