1086641709 has 4 divisors (see below), whose sum is σ = 1448855616. Its totient is φ = 724427804.

The previous prime is 1086641681. The next prime is 1086641741. The reversal of 1086641709 is 9071466801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1086641709 - 2⁸ = 1086641453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086641009) 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 3 ways as a sum of consecutive naturals, for example, 181106949 + ... + 181106954.

It is an arithmetic number, because the mean of its divisors is an integer number (362213904).

Almost surely, 2^1086641709 is an apocalyptic number.

It is an amenable number.

1086641709 is a deficient number, since it is larger than the sum of its proper divisors (362213907).

1086641709 is an equidigital number, since it uses as much as digits as its factorization.

1086641709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362213906.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 1086641709 is about 32964.2489524636. The cubic root of 1086641709 is about 1028.0844496148.

The spelling of 1086641709 in words is "one billion, eighty-six million, six hundred forty-one thousand, seven hundred nine".