1087812871 has 8 divisors (see below), whose sum is σ = 1162158080. Its totient is φ = 1015176888.

The previous prime is 1087812851. The next prime is 1087812877. The reversal of 1087812871 is 1782187801.

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 1087812871 - 2¹⁵ = 1087780103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087812877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425991 + ... + 428536.

It is an arithmetic number, because the mean of its divisors is an integer number (145269760).

Almost surely, 2^1087812871 is an apocalyptic number.

1087812871 is a deficient number, since it is larger than the sum of its proper divisors (74345209).

1087812871 is an equidigital number, since it uses as much as digits as its factorization.

1087812871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854613.

The product of its (nonzero) digits is 50176, while the sum is 43.

The square root of 1087812871 is about 32982.0082924009. The cubic root of 1087812871 is about 1028.4536670303.

The spelling of 1087812871 in words is "one billion, eighty-seven million, eight hundred twelve thousand, eight hundred seventy-one".