8638394 has 8 divisors (see below), whose sum is σ = 12970368. Its totient is φ = 4314940.

The previous prime is 8638381. The next prime is 8638403. The reversal of 8638394 is 4938368.

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

It is a Curzon number.

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, 2039 + ... + 4629.

It is an arithmetic number, because the mean of its divisors is an integer number (1621296).

Almost surely, 2^8638394 is an apocalyptic number.

8638394 is a deficient number, since it is larger than the sum of its proper divisors (4331974).

8638394 is a wasteful number, since it uses less digits than its factorization.

8638394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260.

The product of its digits is 124416, while the sum is 41.

The square root of 8638394 is about 2939.1144924960. The cubic root of 8638394 is about 205.1843988255.

The spelling of 8638394 in words is "eight million, six hundred thirty-eight thousand, three hundred ninety-four".