1683872 has 24 divisors (see below), whose sum is σ = 3354372. Its totient is φ = 832000.

The previous prime is 1683841. The next prime is 1683887. The reversal of 1683872 is 2783861.

It can be written as a sum of positive squares in 2 ways, for example, as 1628176 + 55696 = 1276^2 + 236^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2972 + ... + 3492.

2^1683872 is an apocalyptic number.

It is an amenable number.

1683872 is a deficient number, since it is larger than the sum of its proper divisors (1670500).

1683872 is a wasteful number, since it uses less digits than its factorization.

1683872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 624 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 1683872 is about 1297.6409364689. The cubic root of 1683872 is about 118.9696978138.

The spelling of 1683872 in words is "one million, six hundred eighty-three thousand, eight hundred seventy-two".