989140929 has 8 divisors (see below), whose sum is σ = 1507262400. Its totient is φ = 565223376.

The previous prime is 989140907. The next prime is 989140979. The reversal of 989140929 is 929041989.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 989140929 - 2¹¹ = 989138881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (989140979) 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 7 ways as a sum of consecutive naturals, for example, 23550954 + ... + 23550995.

It is an arithmetic number, because the mean of its divisors is an integer number (188407800).

Almost surely, 2^989140929 is an apocalyptic number.

It is an amenable number.

989140929 is a deficient number, since it is larger than the sum of its proper divisors (518121471).

989140929 is a wasteful number, since it uses less digits than its factorization.

989140929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47101959.

The product of its (nonzero) digits is 419904, while the sum is 51.

The square root of 989140929 is about 31450.6109479609. The cubic root of 989140929 is about 996.3671278888.

The spelling of 989140929 in words is "nine hundred eighty-nine million, one hundred forty thousand, nine hundred twenty-nine".