987944 has 8 divisors (see below), whose sum is σ = 1852410. Its totient is φ = 493968.

The previous prime is 987941. The next prime is 987971. The reversal of 987944 is 449789.

It can be written as a sum of positive squares in only one way, i.e., 925444 + 62500 = 962^2 + 250^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 987944.

It is not an unprimeable number, because it can be changed into a prime (987941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61739 + ... + 61754.

2⁹⁸⁷⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

987944 is a deficient number, since it is larger than the sum of its proper divisors (864466).

987944 is a wasteful number, since it uses less digits than its factorization.

987944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123499 (or 123495 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 987944 is about 993.9537212567. The cubic root of 987944 is about 99.5965074607.

The spelling of 987944 in words is "nine hundred eighty-seven thousand, nine hundred forty-four".