1087871 has 4 divisors (see below), whose sum is σ = 1098744. Its totient is φ = 1077000.

The previous prime is 1087861. The next prime is 1087873. The reversal of 1087871 is 1787801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1087871 - 2¹⁴ = 1071487 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5285 + ... + 5486.

It is an arithmetic number, because the mean of its divisors is an integer number (274686).

2^1087871 is an apocalyptic number.

1087871 is a deficient number, since it is larger than the sum of its proper divisors (10873).

1087871 is a wasteful number, since it uses less digits than its factorization.

1087871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10872.

The product of its (nonzero) digits is 3136, while the sum is 32.

The square root of 1087871 is about 1043.0105464472. The cubic root of 1087871 is about 102.8471985720.

The spelling of 1087871 in words is "one million, eighty-seven thousand, eight hundred seventy-one".