1606832813 has 2 divisors, whose sum is σ = 1606832814. Its totient is φ = 1606832812.

The previous prime is 1606832807. The next prime is 1606832849. The reversal of 1606832813 is 3182386061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1569902884 + 36929929 = 39622^2 + 6077^2 .

It is an emirp because it is prime and its reverse (3182386061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1606832813 - 2¹⁴ = 1606816429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1606832713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803416406 + 803416407.

It is an arithmetic number, because the mean of its divisors is an integer number (803416407).

Almost surely, 2^1606832813 is an apocalyptic number.

It is an amenable number.

1606832813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606832813 is an equidigital number, since it uses as much as digits as its factorization.

1606832813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1606832813 is about 40085.3191704893. The cubic root of 1606832813 is about 1171.2696697150.

The spelling of 1606832813 in words is "one billion, six hundred six million, eight hundred thirty-two thousand, eight hundred thirteen".