987105 has 48 divisors (see below), whose sum is σ = 1969920. Its totient is φ = 419328.

The previous prime is 987101. The next prime is 987127. The reversal of 987105 is 501789.

It is not a de Polignac number, because 987105 - 2² = 987101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (987101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12456 + ... + 12534.

It is an arithmetic number, because the mean of its divisors is an integer number (41040).

2⁹⁸⁷¹⁰⁵ is an apocalyptic number.

It is an amenable number.

987105 is a deficient number, since it is larger than the sum of its proper divisors (982815).

987105 is a wasteful number, since it uses less digits than its factorization.

987105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 987105 is about 993.5315797699. The cubic root of 987105 is about 99.5683057491.

The spelling of 987105 in words is "nine hundred eighty-seven thousand, one hundred five".