1689921832 has 32 divisors (see below), whose sum is σ = 3210943680. Its totient is φ = 833697280.

The previous prime is 1689921823. The next prime is 1689921833. The reversal of 1689921832 is 2381299861.

It is not an unprimeable number, because it can be changed into a prime (1689921833) 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 7 ways as a sum of consecutive naturals, for example, 811032 + ... + 813112.

It is an arithmetic number, because the mean of its divisors is an integer number (100341990).

Almost surely, 2^1689921832 is an apocalyptic number.

It is an amenable number.

1689921832 is a deficient number, since it is larger than the sum of its proper divisors (1521021848).

1689921832 is a wasteful number, since it uses less digits than its factorization.

1689921832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393 (or 3389 counting only the distinct ones).

The product of its digits is 373248, while the sum is 49.

The square root of 1689921832 is about 41108.6588445792. The cubic root of 1689921832 is about 1191.1200602371.

It can be divided in two parts, 1689 and 921832, that added together give a 4-th power (923521 = 31⁴).

The spelling of 1689921832 in words is "one billion, six hundred eighty-nine million, nine hundred twenty-one thousand, eight hundred thirty-two".