1713631 has 4 divisors (see below), whose sum is σ = 1716264. Its totient is φ = 1711000.

The previous prime is 1713601. The next prime is 1713637. The reversal of 1713631 is 1363171.

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.

It is a cyclic number.

It is not a de Polignac number, because 1713631 - 2⁵ = 1713599 is a prime.

It is a super-2 number, since 2×1713631² = 5873062408322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1713637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456 + ... + 1906.

It is an arithmetic number, because the mean of its divisors is an integer number (429066).

2^1713631 is an apocalyptic number.

1713631 is a deficient number, since it is larger than the sum of its proper divisors (2633).

1713631 is a wasteful number, since it uses less digits than its factorization.

1713631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632.

The product of its digits is 378, while the sum is 22.

The square root of 1713631 is about 1309.0572943917. The cubic root of 1713631 is about 119.6664580328. Note that the first 3 decimals are identical.

The spelling of 1713631 in words is "one million, seven hundred thirteen thousand, six hundred thirty-one".