987146 has 4 divisors (see below), whose sum is σ = 1480722. Its totient is φ = 493572.

The previous prime is 987143. The next prime is 987191. The reversal of 987146 is 641789.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 978121 + 9025 = 989^2 + 95^2 .

It is not an unprimeable number, because it can be changed into a prime (987143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246785 + ... + 246788.

2⁹⁸⁷¹⁴⁶ is an apocalyptic number.

987146 is a deficient number, since it is larger than the sum of its proper divisors (493576).

987146 is a wasteful number, since it uses less digits than its factorization.

987146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493575.

The product of its digits is 12096, while the sum is 35.

The square root of 987146 is about 993.5522130215. The cubic root of 987146 is about 99.5696842732.

The spelling of 987146 in words is "nine hundred eighty-seven thousand, one hundred forty-six".