987388 has 12 divisors (see below), whose sum is σ = 1738240. Its totient is φ = 490752.

The previous prime is 987383. The next prime is 987391. The reversal of 987388 is 883789.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987383) by changing a digit.

987388 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 133 + ... + 1411.

2⁹⁸⁷³⁸⁸ is an apocalyptic number.

It is an amenable number.

987388 is a deficient number, since it is larger than the sum of its proper divisors (750852).

987388 is a wasteful number, since it uses less digits than its factorization.

987388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476 (or 1474 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 987388 is about 993.6739908038. The cubic root of 987388 is about 99.5778201500.

The spelling of 987388 in words is "nine hundred eighty-seven thousand, three hundred eighty-eight".