1689872272 has 20 divisors (see below), whose sum is σ = 3571775856. Its totient is φ = 768123680.

The previous prime is 1689872227. The next prime is 1689872321. The reversal of 1689872272 is 2722789861.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4800598 + ... + 4800949.

Almost surely, 2^1689872272 is an apocalyptic number.

It is an amenable number.

1689872272 is an abundant number, since it is smaller than the sum of its proper divisors (1881903584).

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

1689872272 is a wasteful number, since it uses less digits than its factorization.

1689872272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9601566 (or 9601560 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 52.

The square root of 1689872272 is about 41108.0560474465. The cubic root of 1689872272 is about 1191.1084162099.

The spelling of 1689872272 in words is "one billion, six hundred eighty-nine million, eight hundred seventy-two thousand, two hundred seventy-two".