105384987 has 6 divisors (see below), whose sum is σ = 152222772. Its totient is φ = 70256652.

The previous prime is 105384947. The next prime is 105385013. The reversal of 105384987 is 789483501.

It is not a de Polignac number, because 105384987 - 2⁷ = 105384859 is a prime.

It is a super-2 number, since 2×105384987² = 22211990969980338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105384907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5854713 + ... + 5854730.

It is an arithmetic number, because the mean of its divisors is an integer number (25370462).

Almost surely, 2^105384987 is an apocalyptic number.

105384987 is a deficient number, since it is larger than the sum of its proper divisors (46837785).

105384987 is a wasteful number, since it uses less digits than its factorization.

105384987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11709449 (or 11709446 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 105384987 is about 10265.7190201174. The cubic root of 105384987 is about 472.3452823414.

The spelling of 105384987 in words is "one hundred five million, three hundred eighty-four thousand, nine hundred eighty-seven".