1086989871 has 8 divisors (see below), whose sum is σ = 1581076224. Its totient is φ = 658781720.

The previous prime is 1086989837. The next prime is 1086989933. The reversal of 1086989871 is 1789896801.

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 1086989871 - 2⁹ = 1086989359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086989801) 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, 16469511 + ... + 16469576.

It is an arithmetic number, because the mean of its divisors is an integer number (197634528).

Almost surely, 2^1086989871 is an apocalyptic number.

1086989871 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1086989871 is a deficient number, since it is larger than the sum of its proper divisors (494086353).

1086989871 is a wasteful number, since it uses less digits than its factorization.

1086989871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32939101.

The product of its (nonzero) digits is 1741824, while the sum is 57.

The square root of 1086989871 is about 32969.5294324927. The cubic root of 1086989871 is about 1028.1942379390.

The spelling of 1086989871 in words is "one billion, eighty-six million, nine hundred eighty-nine thousand, eight hundred seventy-one".