1987332 has 12 divisors (see below), whose sum is σ = 4637136. Its totient is φ = 662440.

The previous prime is 1987313. The next prime is 1987333. The reversal of 1987332 is 2337891.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1987293 and 1987302.

It is not an unprimeable number, because it can be changed into a prime (1987333) 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, 82794 + ... + 82817.

It is an arithmetic number, because the mean of its divisors is an integer number (386428).

2^1987332 is an apocalyptic number.

1987332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1987332 is an abundant number, since it is smaller than the sum of its proper divisors (2649804).

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

1987332 is a wasteful number, since it uses less digits than its factorization.

1987332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165618 (or 165616 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 1987332 is about 1409.7276332682. The cubic root of 1987332 is about 125.7255300352.

The spelling of 1987332 in words is "one million, nine hundred eighty-seven thousand, three hundred thirty-two".