1689195933 has 24 divisors (see below), whose sum is σ = 2523456000. Its totient is φ = 1088197344.

The previous prime is 1689195929. The next prime is 1689195943. The reversal of 1689195933 is 3395919861.

It is not a de Polignac number, because 1689195933 - 2² = 1689195929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1689195933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1689195943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8143 + ... + 58691.

It is an arithmetic number, because the mean of its divisors is an integer number (105144000).

Almost surely, 2^1689195933 is an apocalyptic number.

It is an amenable number.

1689195933 is a deficient number, since it is larger than the sum of its proper divisors (834260067).

1689195933 is a wasteful number, since it uses less digits than its factorization.

1689195933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50681 (or 50678 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 54.

The square root of 1689195933 is about 41099.8288682569. The cubic root of 1689195933 is about 1190.9494888979.

The spelling of 1689195933 in words is "one billion, six hundred eighty-nine million, one hundred ninety-five thousand, nine hundred thirty-three".