987506 has 16 divisors (see below), whose sum is σ = 1680000. Its totient is φ = 431568.

The previous prime is 987491. The next prime is 987509. The reversal of 987506 is 605789.

987506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 987506.

It is not an unprimeable number, because it can be changed into a prime (987509) by changing a digit.

987506 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 7 ways as a sum of consecutive naturals, for example, 506 + ... + 1493.

It is an arithmetic number, because the mean of its divisors is an integer number (105000).

2⁹⁸⁷⁵⁰⁶ is an apocalyptic number.

987506 is a deficient number, since it is larger than the sum of its proper divisors (692494).

987506 is a wasteful number, since it uses less digits than its factorization.

987506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 987506 is about 993.7333646406. The cubic root of 987506 is about 99.5817867483.

The spelling of 987506 in words is "nine hundred eighty-seven thousand, five hundred six".