1088881987 has 8 divisors (see below), whose sum is σ = 1101457280. Its totient is φ = 1076353920.

The previous prime is 1088881949. The next prime is 1088882009. The reversal of 1088881987 is 7891888801.

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 1088881987 - 2²⁷ = 954664259 is a prime.

It is a super-2 number, since 2×1088881987² = 2371327963226136338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1088881187) 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, 35662 + ... + 58732.

It is an arithmetic number, because the mean of its divisors is an integer number (137682160).

Almost surely, 2^1088881987 is an apocalyptic number.

1088881987 is a deficient number, since it is larger than the sum of its proper divisors (12575293).

1088881987 is a wasteful number, since it uses less digits than its factorization.

1088881987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23613.

The product of its (nonzero) digits is 2064384, while the sum is 58.

The square root of 1088881987 is about 32998.2118757971. The cubic root of 1088881987 is about 1028.7904823914.

The spelling of 1088881987 in words is "one billion, eighty-eight million, eight hundred eighty-one thousand, nine hundred eighty-seven".