1713570409 has 4 divisors (see below), whose sum is σ = 1713656916. Its totient is φ = 1713483904.

The previous prime is 1713570367. The next prime is 1713570427. The reversal of 1713570409 is 9040753171.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9040753171 = 83 ⋅108924737.

It can be written as a sum of positive squares in 2 ways, for example, as 813390400 + 900180009 = 28520^2 + 30003^2 .

It is a cyclic number.

It is not a de Polignac number, because 1713570409 - 2¹³ = 1713562217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1713570479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2817 + ... + 58609.

It is an arithmetic number, because the mean of its divisors is an integer number (428414229).

Almost surely, 2^1713570409 is an apocalyptic number.

It is an amenable number.

1713570409 is a deficient number, since it is larger than the sum of its proper divisors (86507).

1713570409 is an equidigital number, since it uses as much as digits as its factorization.

1713570409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86506.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 1713570409 is about 41395.2945272769. The cubic root of 1713570409 is about 1196.6504761722.

The spelling of 1713570409 in words is "one billion, seven hundred thirteen million, five hundred seventy thousand, four hundred nine".