1684172992 has 28 divisors (see below), whose sum is σ = 3361370976. Its totient is φ = 837213440.

The previous prime is 1684172981. The next prime is 1684173013. The reversal of 1684172992 is 2992714861.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 64984 + ... + 87127.

Almost surely, 2^1684172992 is an apocalyptic number.

It is an amenable number.

1684172992 is a deficient number, since it is larger than the sum of its proper divisors (1677197984).

1684172992 is a wasteful number, since it uses less digits than its factorization.

1684172992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152296 (or 152286 counting only the distinct ones).

The product of its digits is 435456, while the sum is 49.

The square root of 1684172992 is about 41038.6767817872. The cubic root of 1684172992 is about 1189.7678599978.

The spelling of 1684172992 in words is "one billion, six hundred eighty-four million, one hundred seventy-two thousand, nine hundred ninety-two".