987219 has 12 divisors (see below), whose sum is σ = 1435200. Its totient is φ = 653904.

The previous prime is 987211. The next prime is 987227. The reversal of 987219 is 912789.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (987211) and next prime (987227).

It is not a de Polignac number, because 987219 - 2³ = 987211 is a prime.

It is a super-2 number, since 2×987219² = 1949202707922, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 987219.

It is not an unprimeable number, because it can be changed into a prime (987211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1822 + ... + 2300.

It is an arithmetic number, because the mean of its divisors is an integer number (119600).

2⁹⁸⁷²¹⁹ is an apocalyptic number.

987219 is a deficient number, since it is larger than the sum of its proper divisors (447981).

987219 is a wasteful number, since it uses less digits than its factorization.

987219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 711 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 987219 is about 993.5889492139. The cubic root of 987219 is about 99.5721386240.

It can be divided in two parts, 987 and 219, that multiplied together give a triangular number (216153 = T₆₅₇).

The spelling of 987219 in words is "nine hundred eighty-seven thousand, two hundred nineteen".