1606847313 has 4 divisors (see below), whose sum is σ = 2142463088. Its totient is φ = 1071231540.

The previous prime is 1606847267. The next prime is 1606847351. The reversal of 1606847313 is 3137486061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3137486061 = 3 ⋅1045828687.

It is not a de Polignac number, because 1606847313 - 2¹³ = 1606839121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1606847383) 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 in 3 ways as a sum of consecutive naturals, for example, 267807883 + ... + 267807888.

It is an arithmetic number, because the mean of its divisors is an integer number (535615772).

Almost surely, 2^1606847313 is an apocalyptic number.

It is an amenable number.

1606847313 is a deficient number, since it is larger than the sum of its proper divisors (535615775).

1606847313 is an equidigital number, since it uses as much as digits as its factorization.

1606847313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535615774.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 1606847313 is about 40085.5000343017. The cubic root of 1606847313 is about 1171.2731928691.

The spelling of 1606847313 in words is "one billion, six hundred six million, eight hundred forty-seven thousand, three hundred thirteen".