108827865 has 48 divisors (see below), whose sum is σ = 197542800. Its totient is φ = 55351296.

The previous prime is 108827861. The next prime is 108827867. The reversal of 108827865 is 568728801.

It can be written as a sum of positive squares in 8 ways, for example, as 25160256 + 83667609 = 5016^2 + 9147^2 .

It is not a de Polignac number, because 108827865 - 2² = 108827861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 108827865.

It is not an unprimeable number, because it can be changed into a prime (108827861) 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, 115677 + ... + 116613.

It is an arithmetic number, because the mean of its divisors is an integer number (4115475).

Almost surely, 2^108827865 is an apocalyptic number.

108827865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

108827865 is a deficient number, since it is larger than the sum of its proper divisors (88714935).

108827865 is a wasteful number, since it uses less digits than its factorization.

108827865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066 (or 1063 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The square root of 108827865 is about 10432.0594802752. The cubic root of 108827865 is about 477.4340286955.

The spelling of 108827865 in words is "one hundred eight million, eight hundred twenty-seven thousand, eight hundred sixty-five".