989629219 has 4 divisors (see below), whose sum is σ = 1012643896. Its totient is φ = 966614544.

The previous prime is 989629187. The next prime is 989629229. The reversal of 989629219 is 912926989.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 989629219 - 2⁵ = 989629187 is a prime.

It is a super-2 number, since 2×989629219² = 1958731982197099922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 989629219.

It is not an unprimeable number, because it can be changed into a prime (989629229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11507274 + ... + 11507359.

It is an arithmetic number, because the mean of its divisors is an integer number (253160974).

Almost surely, 2^989629219 is an apocalyptic number.

989629219 is the 18163-rd hex number.

989629219 is a deficient number, since it is larger than the sum of its proper divisors (23014677).

989629219 is a wasteful number, since it uses less digits than its factorization.

989629219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23014676.

The product of its digits is 1259712, while the sum is 55.

The square root of 989629219 is about 31458.3727964432. The cubic root of 989629219 is about 996.5310533236.

The spelling of 989629219 in words is "nine hundred eighty-nine million, six hundred twenty-nine thousand, two hundred nineteen".