1684423396 has 12 divisors (see below), whose sum is σ = 2954194348. Its totient is φ = 840367872.

The previous prime is 1684423381. The next prime is 1684423453. The reversal of 1684423396 is 6933244861.

It can be written as a sum of positive squares in 2 ways, for example, as 630512100 + 1053911296 = 25110^2 + 32464^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 458901 + ... + 462556.

Almost surely, 2^1684423396 is an apocalyptic number.

It is an amenable number.

1684423396 is a deficient number, since it is larger than the sum of its proper divisors (1269770952).

1684423396 is a wasteful number, since it uses less digits than its factorization.

1684423396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921918 (or 921916 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The square root of 1684423396 is about 41041.7274977553. The cubic root of 1684423396 is about 1189.8268222440.

The spelling of 1684423396 in words is "one billion, six hundred eighty-four million, four hundred twenty-three thousand, three hundred ninety-six".