1722972653 has 8 divisors (see below), whose sum is σ = 1792133376. Its totient is φ = 1654660800.

The previous prime is 1722972631. The next prime is 1722972659. The reversal of 1722972653 is 3562792271.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1722972653 - 2¹⁰ = 1722971629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1722972659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208076 + ... + 216197.

It is an arithmetic number, because the mean of its divisors is an integer number (224016672).

Almost surely, 2^1722972653 is an apocalyptic number.

It is an amenable number.

1722972653 is a deficient number, since it is larger than the sum of its proper divisors (69160723).

1722972653 is a wasteful number, since it uses less digits than its factorization.

1722972653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424435.

The product of its digits is 317520, while the sum is 44.

The square root of 1722972653 is about 41508.7057495172. The cubic root of 1722972653 is about 1198.8351318696.

The spelling of 1722972653 in words is "one billion, seven hundred twenty-two million, nine hundred seventy-two thousand, six hundred fifty-three".