1887216 has 20 divisors (see below), whose sum is σ = 4875432. Its totient is φ = 629056.

The previous prime is 1887211. The next prime is 1887217. The reversal of 1887216 is 6127881.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1887211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19611 + ... + 19706.

2^1887216 is an apocalyptic number.

1887216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1887216 is an abundant number, since it is smaller than the sum of its proper divisors (2988216).

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

1887216 is a wasteful number, since it uses less digits than its factorization.

1887216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39328 (or 39322 counting only the distinct ones).

The product of its digits is 5376, while the sum is 33.

The square root of 1887216 is about 1373.7598043326. The cubic root of 1887216 is about 123.5778219757.

The spelling of 1887216 in words is "one million, eight hundred eighty-seven thousand, two hundred sixteen".