989878706 has 8 divisors (see below), whose sum is σ = 1496152944. Its totient is φ = 491161060.

The previous prime is 989878699. The next prime is 989878751. The reversal of 989878706 is 607878989.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1888820 + ... + 1889343.

It is an arithmetic number, because the mean of its divisors is an integer number (187019118).

Almost surely, 2^989878706 is an apocalyptic number.

989878706 is a deficient number, since it is larger than the sum of its proper divisors (506274238).

989878706 is a wasteful number, since it uses less digits than its factorization.

989878706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778296.

The product of its (nonzero) digits is 12192768, while the sum is 62.

The square root of 989878706 is about 31462.3378978740. The cubic root of 989878706 is about 996.6147886083.

The spelling of 989878706 in words is "nine hundred eighty-nine million, eight hundred seventy-eight thousand, seven hundred six".