987837 has 8 divisors (see below), whose sum is σ = 1339680. Its totient is φ = 647280.

The previous prime is 987821. The next prime is 987851. The reversal of 987837 is 738789.

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

It is not a de Polignac number, because 987837 - 2⁴ = 987821 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 987837.

It is not an unprimeable number, because it can be changed into a prime (986837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2614 + ... + 2967.

It is an arithmetic number, because the mean of its divisors is an integer number (167460).

2⁹⁸⁷⁸³⁷ is an apocalyptic number.

It is an amenable number.

987837 is a deficient number, since it is larger than the sum of its proper divisors (351843).

987837 is a wasteful number, since it uses less digits than its factorization.

987837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5643.

The product of its digits is 84672, while the sum is 42.

The square root of 987837 is about 993.8998943556. The cubic root of 987837 is about 99.5929117066.

It can be divided in two parts, 98783 and 7, that added together give a triangular number (98790 = T₄₄₄).

The spelling of 987837 in words is "nine hundred eighty-seven thousand, eight hundred thirty-seven".