1664852 has 24 divisors (see below), whose sum is σ = 3421824. Its totient is φ = 693792.

The previous prime is 1664849. The next prime is 1664857. The reversal of 1664852 is 2584661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664857) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 233 + ... + 1839.

It is an arithmetic number, because the mean of its divisors is an integer number (142576).

2^1664852 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 1664852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1710912).

1664852 is an abundant number, since it is smaller than the sum of its proper divisors (1756972).

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

1664852 is a wasteful number, since it uses less digits than its factorization.

1664852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655 (or 1653 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 1664852 is about 1290.2914399468. The cubic root of 1664852 is about 118.5200640182.

The spelling of 1664852 in words is "one million, six hundred sixty-four thousand, eight hundred fifty-two".