1688063 has 8 divisors (see below), whose sum is σ = 1839600. Its totient is φ = 1539648.

The previous prime is 1688047. The next prime is 1688069. The reversal of 1688063 is 3608861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1688063 - 2⁴ = 1688047 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1688069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428 + ... + 1886.

It is an arithmetic number, because the mean of its divisors is an integer number (229950).

2^1688063 is an apocalyptic number.

1688063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1688063 is a deficient number, since it is larger than the sum of its proper divisors (151537).

1688063 is a wasteful number, since it uses less digits than its factorization.

1688063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1688063 is about 1299.2547864064. The cubic root of 1688063 is about 119.0683175261.

The spelling of 1688063 in words is "one million, six hundred eighty-eight thousand, sixty-three".