1713520 has 20 divisors (see below), whose sum is σ = 3984120. Its totient is φ = 685376.

The previous prime is 1713511. The next prime is 1713521. The reversal of 1713520 is 253171.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1713521) 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, 10630 + ... + 10789.

It is an arithmetic number, because the mean of its divisors is an integer number (199206).

2^1713520 is an apocalyptic number.

1713520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1713520 is an abundant number, since it is smaller than the sum of its proper divisors (2270600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1713520 is a wasteful number, since it uses less digits than its factorization.

1713520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21432 (or 21426 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 1713520 is about 1309.0148967831. The cubic root of 1713520 is about 119.6638741892.

Adding to 1713520 its reverse (253171), we get a palindrome (1966691).

The spelling of 1713520 in words is "one million, seven hundred thirteen thousand, five hundred twenty".