1086817109 has 8 divisors (see below), whose sum is σ = 1267425600. Its totient is φ = 931557228.

The previous prime is 1086817103. The next prime is 1086817139. The reversal of 1086817109 is 9017186801.

It is a de Polignac number, because none of the positive numbers 2^k-1086817109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086817103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1583939 + ... + 1584624.

It is an arithmetic number, because the mean of its divisors is an integer number (158428200).

Almost surely, 2^1086817109 is an apocalyptic number.

It is an amenable number.

1086817109 is a deficient number, since it is larger than the sum of its proper divisors (180608491).

1086817109 is an frugal number, since it uses more digits than its factorization.

1086817109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168584 (or 3168570 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 41.

The square root of 1086817109 is about 32966.9093031179. The cubic root of 1086817109 is about 1028.1397626370.

The spelling of 1086817109 in words is "one billion, eighty-six million, eight hundred seventeen thousand, one hundred nine".