1705272213 has 4 divisors (see below), whose sum is σ = 2273696288. Its totient is φ = 1136848140.

The previous prime is 1705272203. The next prime is 1705272229. The reversal of 1705272213 is 3122725071.

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: 3122725071 = 3 ⋅1040908357.

It is not a de Polignac number, because 1705272213 - 2¹⁰ = 1705271189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1705272203) 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, 284212033 + ... + 284212038.

It is an arithmetic number, because the mean of its divisors is an integer number (568424072).

Almost surely, 2^1705272213 is an apocalyptic number.

It is an amenable number.

1705272213 is a deficient number, since it is larger than the sum of its proper divisors (568424075).

1705272213 is an equidigital number, since it uses as much as digits as its factorization.

1705272213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568424074.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 1705272213 is about 41294.9417362466. The cubic root of 1705272213 is about 1194.7157025181.

Adding to 1705272213 its reverse (3122725071), we get a palindrome (4827997284).

The spelling of 1705272213 in words is "one billion, seven hundred five million, two hundred seventy-two thousand, two hundred thirteen".