888261987 has 8 divisors (see below), whose sum is σ = 1185356880. Its totient is φ = 591670880.

The previous prime is 888261961. The next prime is 888262013. The reversal of 888261987 is 789162888.

It is an interprime number because it is at equal distance from previous prime (888261961) and next prime (888262013).

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 888261987 - 2¹⁵ = 888229219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (888261937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121812 + ... + 128897.

It is an arithmetic number, because the mean of its divisors is an integer number (148169610).

Almost surely, 2^888261987 is an apocalyptic number.

888261987 is a deficient number, since it is larger than the sum of its proper divisors (297094893).

888261987 is a wasteful number, since it uses less digits than its factorization.

888261987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251893.

The product of its digits is 3096576, while the sum is 57.

The square root of 888261987 is about 29803.7243813588. The cubic root of 888261987 is about 961.2736231338.

Subtracting from 888261987 its reverse (789162888), we obtain a palindrome (99099099).

The spelling of 888261987 in words is "eight hundred eighty-eight million, two hundred sixty-one thousand, nine hundred eighty-seven".