8638973 has 8 divisors (see below), whose sum is σ = 9921600. Its totient is φ = 7368480.

The previous prime is 8638967. The next prime is 8638991. The reversal of 8638973 is 3798368.

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

It is not a de Polignac number, because 8638973 - 2⁶ = 8638909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8638933) 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, 1448 + ... + 4401.

It is an arithmetic number, because the mean of its divisors is an integer number (1240200).

Almost surely, 2^8638973 is an apocalyptic number.

It is an amenable number.

8638973 is a deficient number, since it is larger than the sum of its proper divisors (1282627).

8638973 is a wasteful number, since it uses less digits than its factorization.

8638973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6067.

The product of its digits is 217728, while the sum is 44.

The square root of 8638973 is about 2939.2129899005. The cubic root of 8638973 is about 205.1889829767.

The spelling of 8638973 in words is "eight million, six hundred thirty-eight thousand, nine hundred seventy-three".