1873664 has 36 divisors (see below), whose sum is σ = 4034856. Its totient is φ = 863232.

The previous prime is 1873657. The next prime is 1873679. The reversal of 1873664 is 4663781.

It is a congruent number.

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, 3047 + ... + 3609.

2^1873664 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 1873664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2017428).

1873664 is an abundant number, since it is smaller than the sum of its proper divisors (2161192).

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

1873664 is an equidigital number, since it uses as much as digits as its factorization.

1873664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 578 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 1873664 is about 1368.8184686071. The cubic root of 1873664 is about 123.2813091191.

The spelling of 1873664 in words is "one million, eight hundred seventy-three thousand, six hundred sixty-four".