988446489 has 4 divisors (see below), whose sum is σ = 1317928656. Its totient is φ = 658964324.

The previous prime is 988446467. The next prime is 988446497. The reversal of 988446489 is 984644889.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 988446489 - 2¹⁵ = 988413721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (988446889) 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 3 ways as a sum of consecutive naturals, for example, 164741079 + ... + 164741084.

It is an arithmetic number, because the mean of its divisors is an integer number (329482164).

Almost surely, 2^988446489 is an apocalyptic number.

It is an amenable number.

988446489 is a deficient number, since it is larger than the sum of its proper divisors (329482167).

988446489 is a wasteful number, since it uses less digits than its factorization.

988446489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329482166.

The product of its digits is 15925248, while the sum is 60.

The square root of 988446489 is about 31439.5688424635. The cubic root of 988446489 is about 996.1339022164.

The spelling of 988446489 in words is "nine hundred eighty-eight million, four hundred forty-six thousand, four hundred eighty-nine".