1871896 has 32 divisors (see below), whose sum is σ = 3880800. Its totient is φ = 840960.

The previous prime is 1871879. The next prime is 1871917. The reversal of 1871896 is 6981781.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4045 + ... + 4483.

It is an arithmetic number, because the mean of its divisors is an integer number (121275).

2^1871896 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 1871896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1940400).

1871896 is an abundant number, since it is smaller than the sum of its proper divisors (2008904).

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

1871896 is a wasteful number, since it uses less digits than its factorization.

1871896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 495 counting only the distinct ones).

The product of its digits is 24192, while the sum is 40.

The square root of 1871896 is about 1368.1725037436. The cubic root of 1871896 is about 123.2425206015.

The spelling of 1871896 in words is "one million, eight hundred seventy-one thousand, eight hundred ninety-six".