987215 has 8 divisors (see below), whose sum is σ = 1190160. Its totient is φ = 786112.

The previous prime is 987211. The next prime is 987227. The reversal of 987215 is 512789.

987215 is nontrivially palindromic in base 4.

987215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 987215 - 2² = 987211 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1451 + ... + 2019.

It is an arithmetic number, because the mean of its divisors is an integer number (148770).

2⁹⁸⁷²¹⁵ is an apocalyptic number.

987215 is a deficient number, since it is larger than the sum of its proper divisors (202945).

987215 is a wasteful number, since it uses less digits than its factorization.

987215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921.

The product of its digits is 5040, while the sum is 32.

The square root of 987215 is about 993.5869363070. The cubic root of 987215 is about 99.5720041421.

The spelling of 987215 in words is "nine hundred eighty-seven thousand, two hundred fifteen".