1688048 has 10 divisors (see below), whose sum is σ = 3270624. Its totient is φ = 844016.

The previous prime is 1688047. The next prime is 1688069. The reversal of 1688048 is 8408861.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1687999 and 1688017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1688041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52736 + ... + 52767.

2^1688048 is an apocalyptic number.

It is an amenable number.

1688048 is a deficient number, since it is larger than the sum of its proper divisors (1582576).

1688048 is a wasteful number, since it uses less digits than its factorization.

1688048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105511 (or 105505 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 1688048 is about 1299.2490138538. The cubic root of 1688048 is about 119.0679648477.

The spelling of 1688048 in words is "one million, six hundred eighty-eight thousand, forty-eight".