1987132 has 12 divisors (see below), whose sum is σ = 3974320. Its totient is φ = 851616.

The previous prime is 1987127. The next prime is 1987151. The reversal of 1987132 is 2317891.

1987132 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1987094 and 1987103.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 35457 + ... + 35512.

2^1987132 is an apocalyptic number.

It is an amenable number.

1987132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1987132 is a wasteful number, since it uses less digits than its factorization.

1987132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70980 (or 70978 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 1987132 is about 1409.6566957951. The cubic root of 1987132 is about 125.7213123286.

The spelling of 1987132 in words is "one million, nine hundred eighty-seven thousand, one hundred thirty-two".