8729380 has 24 divisors (see below), whose sum is σ = 19998720. Its totient is φ = 3174240.

The previous prime is 8729333. The next prime is 8729389. The reversal of 8729380 is 839278.

It is not an unprimeable number, because it can be changed into a prime (8729389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19620 + ... + 20059.

It is an arithmetic number, because the mean of its divisors is an integer number (833280).

Almost surely, 2^8729380 is an apocalyptic number.

It is an amenable number.

8729380 is an abundant number, since it is smaller than the sum of its proper divisors (11269340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8729380 is a wasteful number, since it uses less digits than its factorization.

8729380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39699 (or 39697 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 8729380 is about 2954.5524195722. The cubic root of 8729380 is about 205.9022692858.

The spelling of 8729380 in words is "eight million, seven hundred twenty-nine thousand, three hundred eighty".