1606094489 has 2 divisors, whose sum is σ = 1606094490. Its totient is φ = 1606094488.

The previous prime is 1606094473. The next prime is 1606094513. The reversal of 1606094489 is 9844906061.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1133466889 + 472627600 = 33667^2 + 21740^2 .

It is an emirp because it is prime and its reverse (9844906061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1606094489 - 2⁴ = 1606094473 is a prime.

It is a super-2 number, since 2×1606094489² = 5159079015192342242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1606090489) 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, 803047244 + 803047245.

It is an arithmetic number, because the mean of its divisors is an integer number (803047245).

Almost surely, 2^1606094489 is an apocalyptic number.

It is an amenable number.

1606094489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606094489 is an equidigital number, since it uses as much as digits as its factorization.

1606094489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 1606094489 is about 40076.1087058112. The cubic root of 1606094489 is about 1171.0902465693.

The spelling of 1606094489 in words is "one billion, six hundred six million, ninety-four thousand, four hundred eighty-nine".