988071918 has 16 divisors (see below), whose sum is σ = 1976454480. Its totient is φ = 329305536.

The previous prime is 988071913. The next prime is 988071937. The reversal of 988071918 is 819170889.

It is a super-2 number, since 2×988071918² = 1952572230280397448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988071913) 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 7 ways as a sum of consecutive naturals, for example, 60228 + ... + 74856.

It is an arithmetic number, because the mean of its divisors is an integer number (123528405).

Almost surely, 2^988071918 is an apocalyptic number.

988071918 is an abundant number, since it is smaller than the sum of its proper divisors (988382562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

988071918 is a wasteful number, since it uses less digits than its factorization.

988071918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25891.

The product of its (nonzero) digits is 290304, while the sum is 51.

The square root of 988071918 is about 31433.6112783753. The cubic root of 988071918 is about 996.0080582726.

The spelling of 988071918 in words is "nine hundred eighty-eight million, seventy-one thousand, nine hundred eighteen".