1666848 has 48 divisors (see below), whose sum is σ = 4445280. Its totient is φ = 546816.

The previous prime is 1666843. The next prime is 1666853. The reversal of 1666848 is 8486661.

It is an interprime number because it is at equal distance from previous prime (1666843) and next prime (1666853).

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (1666843) 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, 9223 + ... + 9401.

It is an arithmetic number, because the mean of its divisors is an integer number (92610).

2^1666848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1666848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2222640).

1666848 is an abundant number, since it is smaller than the sum of its proper divisors (2778432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1666848 is a wasteful number, since it uses less digits than its factorization.

1666848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 281 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 1666848 is about 1291.0646769237. The cubic root of 1666848 is about 118.5674098825.

The spelling of 1666848 in words is "one million, six hundred sixty-six thousand, eight hundred forty-eight".