987522 has 8 divisors (see below), whose sum is σ = 1975056. Its totient is φ = 329172.

The previous prime is 987509. The next prime is 987523. The reversal of 987522 is 225789.

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

987522 is an admirable number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (987523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82288 + ... + 82299.

It is an arithmetic number, because the mean of its divisors is an integer number (246882).

2⁹⁸⁷⁵²² is an apocalyptic number.

987522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

987522 is a wasteful number, since it uses less digits than its factorization.

987522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164592.

The product of its digits is 10080, while the sum is 33.

The square root of 987522 is about 993.7414150573. The cubic root of 987522 is about 99.5823245678.

The spelling of 987522 in words is "nine hundred eighty-seven thousand, five hundred twenty-two".