1712728 has 8 divisors (see below), whose sum is σ = 3211380. Its totient is φ = 856360.

The previous prime is 1712707. The next prime is 1712743. The reversal of 1712728 is 8272171.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1712696 and 1712705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107038 + ... + 107053.

2^1712728 is an apocalyptic number.

It is an amenable number.

1712728 is a deficient number, since it is larger than the sum of its proper divisors (1498652).

1712728 is a wasteful number, since it uses less digits than its factorization.

1712728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214097 (or 214093 counting only the distinct ones).

The product of its digits is 1568, while the sum is 28.

The square root of 1712728 is about 1308.7123442529. The cubic root of 1712728 is about 119.6454348764.

Adding to 1712728 its reverse (8272171), we get a palindrome (9984899).

The spelling of 1712728 in words is "one million, seven hundred twelve thousand, seven hundred twenty-eight".