988170381 has 16 divisors (see below), whose sum is σ = 1597043520. Its totient is φ = 598890960.

The previous prime is 988170377. The next prime is 988170427. The reversal of 988170381 is 183071889.

988170381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 988170381 - 2² = 988170377 is a prime.

It is a super-2 number, since 2×988170381² = 1952961403771370322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988170301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1663290 + ... + 1663883.

It is an arithmetic number, because the mean of its divisors is an integer number (99815220).

Almost surely, 2^988170381 is an apocalyptic number.

It is an amenable number.

988170381 is a deficient number, since it is larger than the sum of its proper divisors (608873139).

988170381 is a wasteful number, since it uses less digits than its factorization.

988170381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327193 (or 3327187 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 988170381 is about 31435.1774450217. The cubic root of 988170381 is about 996.0411417902.

The spelling of 988170381 in words is "nine hundred eighty-eight million, one hundred seventy thousand, three hundred eighty-one".