8640934 has 8 divisors (see below), whose sum is σ = 13643640. Its totient is φ = 4093056.

The previous prime is 8640911. The next prime is 8640949. The reversal of 8640934 is 4390468.

8640934 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 8640934.

It is a congruent 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, 113659 + ... + 113734.

It is an arithmetic number, because the mean of its divisors is an integer number (1705455).

Almost surely, 2^8640934 is an apocalyptic number.

8640934 is a deficient number, since it is larger than the sum of its proper divisors (5002706).

8640934 is a wasteful number, since it uses less digits than its factorization.

8640934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227414.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 8640934 is about 2939.5465636727. The cubic root of 8640934 is about 205.2045073974.

The spelling of 8640934 in words is "eight million, six hundred forty thousand, nine hundred thirty-four".