989466549 has 4 divisors (see below), whose sum is σ = 1319288736. Its totient is φ = 659644364.

The previous prime is 989466503. The next prime is 989466559. The reversal of 989466549 is 945664989.

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, and also an emirpimes, since its reverse is a distinct semiprime: 945664989 = 3 ⋅315221663.

It is a cyclic number.

It is not a de Polignac number, because 989466549 - 2⁸ = 989466293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 989466492 and 989466501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989466559) 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, 164911089 + ... + 164911094.

It is an arithmetic number, because the mean of its divisors is an integer number (329822184).

Almost surely, 2^989466549 is an apocalyptic number.

It is an amenable number.

989466549 is a deficient number, since it is larger than the sum of its proper divisors (329822187).

989466549 is a wasteful number, since it uses less digits than its factorization.

989466549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329822186.

The product of its digits is 16796160, while the sum is 60.

The square root of 989466549 is about 31455.7872099873. The cubic root of 989466549 is about 996.4764488360.

The spelling of 989466549 in words is "nine hundred eighty-nine million, four hundred sixty-six thousand, five hundred forty-nine".