988269987 has 32 divisors (see below), whose sum is σ = 1395523584. Its totient is φ = 621165600.

The previous prime is 988269979. The next prime is 988269991. The reversal of 988269987 is 789962889.

It is not a de Polignac number, because 988269987 - 2³ = 988269979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (988269937) 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 31 ways as a sum of consecutive naturals, for example, 1359018 + ... + 1359744.

It is an arithmetic number, because the mean of its divisors is an integer number (43610112).

Almost surely, 2^988269987 is an apocalyptic number.

988269987 is a deficient number, since it is larger than the sum of its proper divisors (407253597).

988269987 is a wasteful number, since it uses less digits than its factorization.

988269987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119.

The product of its digits is 31352832, while the sum is 66.

The square root of 988269987 is about 31436.7617130009. The cubic root of 988269987 is about 996.0746071191.

The spelling of 988269987 in words is "nine hundred eighty-eight million, two hundred sixty-nine thousand, nine hundred eighty-seven".