987088811 has 4 divisors (see below), whose sum is σ = 990304392. Its totient is φ = 983873232.

The previous prime is 987088807. The next prime is 987088813. The reversal of 987088811 is 118880789.

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 987088811 - 2² = 987088807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 987088811.

It is not an unprimeable number, because it can be changed into a prime (987088813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1607330 + ... + 1607943.

It is an arithmetic number, because the mean of its divisors is an integer number (247576098).

Almost surely, 2^987088811 is an apocalyptic number.

987088811 is a deficient number, since it is larger than the sum of its proper divisors (3215581).

987088811 is a wasteful number, since it uses less digits than its factorization.

987088811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215580.

The product of its (nonzero) digits is 258048, while the sum is 50.

The square root of 987088811 is about 31417.9695556540. The cubic root of 987088811 is about 995.6776142330.

The spelling of 987088811 in words is "nine hundred eighty-seven million, eighty-eight thousand, eight hundred eleven".