1669923884 has 6 divisors (see below), whose sum is σ = 2922366804. Its totient is φ = 834961940.

The previous prime is 1669923881. The next prime is 1669923917. The reversal of 1669923884 is 4883299661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1669923881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208740482 + ... + 208740489.

It is an arithmetic number, because the mean of its divisors is an integer number (487061134).

Almost surely, 2^1669923884 is an apocalyptic number.

It is an amenable number.

1669923884 is a deficient number, since it is larger than the sum of its proper divisors (1252442920).

1669923884 is a wasteful number, since it uses less digits than its factorization.

1669923884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417480975 (or 417480973 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 56.

The square root of 1669923884 is about 40864.7021768176. The cubic root of 1669923884 is about 1186.4029705208.

The spelling of 1669923884 in words is "one billion, six hundred sixty-nine million, nine hundred twenty-three thousand, eight hundred eighty-four".