1118806887 has 32 divisors (see below), whose sum is σ = 1715616000. Its totient is φ = 641399040.

The previous prime is 1118806877. The next prime is 1118806889. The reversal of 1118806887 is 7886088111.

It is not a de Polignac number, because 1118806887 - 2¹¹ = 1118804839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118806889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 694539 + ... + 696147.

It is an arithmetic number, because the mean of its divisors is an integer number (53613000).

Almost surely, 2^1118806887 is an apocalyptic number.

1118806887 is a deficient number, since it is larger than the sum of its proper divisors (596809113).

1118806887 is a wasteful number, since it uses less digits than its factorization.

1118806887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751.

The product of its (nonzero) digits is 172032, while the sum is 48.

The square root of 1118806887 is about 33448.5707766416. The cubic root of 1118806887 is about 1038.1299255248.

The spelling of 1118806887 in words is "one billion, one hundred eighteen million, eight hundred six thousand, eight hundred eighty-seven".