988665522 has 16 divisors (see below), whose sum is σ = 2129433600. Its totient is φ = 304204752.

The previous prime is 988665521. The next prime is 988665527. The reversal of 988665522 is 225566889.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (988665521) 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, 6337522 + ... + 6337677.

It is an arithmetic number, because the mean of its divisors is an integer number (133089600).

Almost surely, 2^988665522 is an apocalyptic number.

988665522 is an abundant number, since it is smaller than the sum of its proper divisors (1140768078).

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

988665522 is a wasteful number, since it uses less digits than its factorization.

988665522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12675217.

The product of its digits is 2073600, while the sum is 51.

The square root of 988665522 is about 31443.0520465174. The cubic root of 988665522 is about 996.2074756083.

The spelling of 988665522 in words is "nine hundred eighty-eight million, six hundred sixty-five thousand, five hundred twenty-two".