1085718787 has 8 divisors (see below), whose sum is σ = 1180655136. Its totient is φ = 994234752.

The previous prime is 1085718773. The next prime is 1085718793. The reversal of 1085718787 is 7878175801.

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 1085718787 - 2¹¹ = 1085716739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1085718757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862423 + ... + 863680.

It is an arithmetic number, because the mean of its divisors is an integer number (147581892).

Almost surely, 2^1085718787 is an apocalyptic number.

1085718787 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1085718787 is a deficient number, since it is larger than the sum of its proper divisors (94936349).

1085718787 is a wasteful number, since it uses less digits than its factorization.

1085718787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726157.

The product of its (nonzero) digits is 878080, while the sum is 52.

The square root of 1085718787 is about 32950.2471462658. The cubic root of 1085718787 is about 1027.7933047344.

The spelling of 1085718787 in words is "one billion, eighty-five million, seven hundred eighteen thousand, seven hundred eighty-seven".