109087 has 8 divisors (see below), whose sum is σ = 122112. Its totient is φ = 96600.

The previous prime is 109073. The next prime is 109097. The reversal of 109087 is 780901.

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 109087 - 2⁷ = 108959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 109087.

It is not an unprimeable number, because it can be changed into a prime (109037) 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, 412 + ... + 622.

It is an arithmetic number, because the mean of its divisors is an integer number (15264).

2¹⁰⁹⁰⁸⁷ is an apocalyptic number.

109087 is a deficient number, since it is larger than the sum of its proper divisors (13025).

109087 is a wasteful number, since it uses less digits than its factorization.

109087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 109087 is about 330.2832118047. The cubic root of 109087 is about 47.7812674974.

Adding to 109087 its reverse (780901), we get a palindrome (889988).

It can be divided in two parts, 1090 and 87, that multiplied together give a triangular number (94830 = T₄₃₅).

The spelling of 109087 in words is "one hundred nine thousand, eighty-seven".