1987326 has 24 divisors (see below), whose sum is σ = 4697784. Its totient is φ = 602160.

The previous prime is 1987313. The next prime is 1987333. The reversal of 1987326 is 6237891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4821 + ... + 5216.

It is an arithmetic number, because the mean of its divisors is an integer number (195741).

2^1987326 is an apocalyptic number.

1987326 is an abundant number, since it is smaller than the sum of its proper divisors (2710458).

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

1987326 is a wasteful number, since it uses less digits than its factorization.

1987326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10056 (or 10053 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 1987326 is about 1409.7255051960. The cubic root of 1987326 is about 125.7254035081.

The spelling of 1987326 in words is "one million, nine hundred eighty-seven thousand, three hundred twenty-six".