8643974 has 8 divisors (see below), whose sum is σ = 13648440. Its totient is φ = 4094496.

The previous prime is 8643959. The next prime is 8643991. The reversal of 8643974 is 4793468.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113699 + ... + 113774.

It is an arithmetic number, because the mean of its divisors is an integer number (1706055).

Almost surely, 2^8643974 is an apocalyptic number.

8643974 is a deficient number, since it is larger than the sum of its proper divisors (5004466).

8643974 is a wasteful number, since it uses less digits than its factorization.

8643974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227494.

The product of its digits is 145152, while the sum is 41.

The square root of 8643974 is about 2940.0636047542. The cubic root of 8643974 is about 205.2285691698.

The spelling of 8643974 in words is "eight million, six hundred forty-three thousand, nine hundred seventy-four".