987872 has 12 divisors (see below), whose sum is σ = 1944936. Its totient is φ = 493920.

The previous prime is 987869. The next prime is 987911. The reversal of 987872 is 278789.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15404 + ... + 15467.

It is an arithmetic number, because the mean of its divisors is an integer number (162078).

2⁹⁸⁷⁸⁷² is an apocalyptic number.

It is an amenable number.

987872 is a deficient number, since it is larger than the sum of its proper divisors (957064).

987872 is a wasteful number, since it uses less digits than its factorization.

987872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30881 (or 30873 counting only the distinct ones).

The product of its digits is 56448, while the sum is 41.

The square root of 987872 is about 993.9175016066. The cubic root of 987872 is about 99.5940879165.

It can be divided in two parts, 98787 and 2, that added together give a palindrome (98789).

The spelling of 987872 in words is "nine hundred eighty-seven thousand, eight hundred seventy-two".