987922 has 8 divisors (see below), whose sum is σ = 1595916. Its totient is φ = 455952.

The previous prime is 987913. The next prime is 987929. The reversal of 987922 is 229789.

It can be written as a sum of positive squares in 2 ways, for example, as 978121 + 9801 = 989^2 + 99^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (987929) by changing a digit.

987922 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18973 + ... + 19024.

2⁹⁸⁷⁹²² is an apocalyptic number.

987922 is a deficient number, since it is larger than the sum of its proper divisors (607994).

987922 is a wasteful number, since it uses less digits than its factorization.

987922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38012.

The product of its digits is 18144, while the sum is 37.

The square root of 987922 is about 993.9426542814. The cubic root of 987922 is about 99.5957681680.

The spelling of 987922 in words is "nine hundred eighty-seven thousand, nine hundred twenty-two".