988530361 has 12 divisors (see below), whose sum is σ = 1238379492. Its totient is φ = 782133408.

The previous prime is 988530349. The next prime is 988530379. The reversal of 988530361 is 163035889.

It can be written as a sum of positive squares in 2 ways, for example, as 385533225 + 602997136 = 19635^2 + 24556^2 .

It is not a de Polignac number, because 988530361 - 2⁹ = 988529849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (988534361) 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 11 ways as a sum of consecutive naturals, for example, 775290 + ... + 776563.

It is an arithmetic number, because the mean of its divisors is an integer number (103198291).

Almost surely, 2^988530361 is an apocalyptic number.

988530361 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

988530361 is a deficient number, since it is larger than the sum of its proper divisors (249849131).

988530361 is a wasteful number, since it uses less digits than its factorization.

988530361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551880 (or 1551873 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 988530361 is about 31440.9026747007. The cubic root of 988530361 is about 996.1620761846.

The spelling of 988530361 in words is "nine hundred eighty-eight million, five hundred thirty thousand, three hundred sixty-one".