108809287 has 8 divisors (see below), whose sum is σ = 112551552. Its totient is φ = 105081600.

The previous prime is 108809279. The next prime is 108809293. The reversal of 108809287 is 782908801.

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 108809287 - 2³ = 108809279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108809227) 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, 12783 + ... + 19519.

It is an arithmetic number, because the mean of its divisors is an integer number (14068944).

Almost surely, 2^108809287 is an apocalyptic number.

108809287 is a deficient number, since it is larger than the sum of its proper divisors (3742265).

108809287 is an equidigital number, since it uses as much as digits as its factorization.

108809287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7289.

The product of its (nonzero) digits is 64512, while the sum is 43.

The square root of 108809287 is about 10431.1690140655. The cubic root of 108809287 is about 477.4068595688.

The spelling of 108809287 in words is "one hundred eight million, eight hundred nine thousand, two hundred eighty-seven".