8729394 has 8 divisors (see below), whose sum is σ = 17458800. Its totient is φ = 2909796.

The previous prime is 8729389. The next prime is 8729401. The reversal of 8729394 is 4939278.

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

8729394 is an admirable number.

It is a Curzon number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727444 + ... + 727455.

It is an arithmetic number, because the mean of its divisors is an integer number (2182350).

Almost surely, 2^8729394 is an apocalyptic number.

8729394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8729394 is a wasteful number, since it uses less digits than its factorization.

8729394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454904.

The product of its digits is 108864, while the sum is 42.

The square root of 8729394 is about 2954.5547887964. The cubic root of 8729394 is about 205.9023793597.

The spelling of 8729394 in words is "eight million, seven hundred twenty-nine thousand, three hundred ninety-four".