1684675923 has 16 divisors (see below), whose sum is σ = 2570211840. Its totient is φ = 961514496.

The previous prime is 1684675919. The next prime is 1684675933. The reversal of 1684675923 is 3295764861.

It is not a de Polignac number, because 1684675923 - 2² = 1684675919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1684675913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30190 + ... + 65427.

It is an arithmetic number, because the mean of its divisors is an integer number (160638240).

Almost surely, 2^1684675923 is an apocalyptic number.

1684675923 is a deficient number, since it is larger than the sum of its proper divisors (885535917).

1684675923 is an equidigital number, since it uses as much as digits as its factorization.

1684675923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96466.

The product of its digits is 2177280, while the sum is 51.

The square root of 1684675923 is about 41044.8038489649. The cubic root of 1684675923 is about 1189.8862784719.

The spelling of 1684675923 in words is "one billion, six hundred eighty-four million, six hundred seventy-five thousand, nine hundred twenty-three".