1703213 has 4 divisors (see below), whose sum is σ = 1803420. Its totient is φ = 1603008.

The previous prime is 1703203. The next prime is 1703227. The reversal of 1703213 is 3123071.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 806404 + 896809 = 898^2 + 947^2 .

It is a cyclic number.

It is not a de Polignac number, because 1703213 - 2¹⁰ = 1702189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 100189 = 1703213 / (1 + 7 + 0 + 3 + 2 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1703191 and 1703200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1703203) 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, 50078 + ... + 50111.

It is an arithmetic number, because the mean of its divisors is an integer number (450855).

2^1703213 is an apocalyptic number.

It is an amenable number.

1703213 is a deficient number, since it is larger than the sum of its proper divisors (100207).

1703213 is a wasteful number, since it uses less digits than its factorization.

1703213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100206.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 1703213 is about 1305.0720286636. The cubic root of 1703213 is about 119.4234613142.

Adding to 1703213 its reverse (3123071), we get a palindrome (4826284).

The spelling of 1703213 in words is "one million, seven hundred three thousand, two hundred thirteen".