988915939 has 12 divisors (see below), whose sum is σ = 1088033632. Its totient is φ = 898151760.

The previous prime is 988915919. The next prime is 988915969. The reversal of 988915939 is 939519889.

It is a happy number.

It is not a de Polignac number, because 988915939 - 2⁹ = 988915427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (988915919) 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 11 ways as a sum of consecutive naturals, for example, 146374 + ... + 152980.

Almost surely, 2^988915939 is an apocalyptic number.

988915939 is a deficient number, since it is larger than the sum of its proper divisors (99117693).

988915939 is a wasteful number, since it uses less digits than its factorization.

988915939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7866 (or 7855 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 61.

The square root of 988915939 is about 31447.0338664873. The cubic root of 988915939 is about 996.2915776032.

The spelling of 988915939 in words is "nine hundred eighty-eight million, nine hundred fifteen thousand, nine hundred thirty-nine".