1713820 has 12 divisors (see below), whose sum is σ = 3599064. Its totient is φ = 685520.

The previous prime is 1713809. The next prime is 1713823. The reversal of 1713820 is 283171.

It is a junction number, because it is equal to n+sod(n) for n = 1713791 and 1713800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1713823) 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, 42826 + ... + 42865.

It is an arithmetic number, because the mean of its divisors is an integer number (299922).

2^1713820 is an apocalyptic number.

1713820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1713820 is an abundant number, since it is smaller than the sum of its proper divisors (1885244).

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

1713820 is a wasteful number, since it uses less digits than its factorization.

1713820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85700 (or 85698 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1713820 is about 1309.1294817550. The cubic root of 1713820 is about 119.6708572937.

Adding to 1713820 its reverse (283171), we get a palindrome (1996991).

The spelling of 1713820 in words is "one million, seven hundred thirteen thousand, eight hundred twenty".