1728228695 has 16 divisors (see below), whose sum is σ = 2233799040. Its totient is φ = 1279351584.

The previous prime is 1728228683. The next prime is 1728228709. The reversal of 1728228695 is 5968228271.

It is a cyclic number.

It is not a de Polignac number, because 1728228695 - 2⁶ = 1728228631 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207449 + ... + 215618.

It is an arithmetic number, because the mean of its divisors is an integer number (139612440).

Almost surely, 2^1728228695 is an apocalyptic number.

1728228695 is a deficient number, since it is larger than the sum of its proper divisors (505570345).

1728228695 is a wasteful number, since it uses less digits than its factorization.

1728228695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423134.

The product of its digits is 967680, while the sum is 50.

The square root of 1728228695 is about 41571.9700639746. The cubic root of 1728228695 is about 1200.0529363222.

The spelling of 1728228695 in words is "one billion, seven hundred twenty-eight million, two hundred twenty-eight thousand, six hundred ninety-five".