8646940 has 24 divisors (see below), whose sum is σ = 18380880. Its totient is φ = 3416448.

The previous prime is 8646929. The next prime is 8646943. The reversal of 8646940 is 496468.

It is a self number, because there is not a number n which added to its sum of digits gives 8646940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8646943) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 945 + ... + 4264.

It is an arithmetic number, because the mean of its divisors is an integer number (765870).

Almost surely, 2^8646940 is an apocalyptic number.

It is an amenable number.

8646940 is an abundant number, since it is smaller than the sum of its proper divisors (9733940).

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

8646940 is a wasteful number, since it uses less digits than its factorization.

8646940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5301 (or 5299 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 8646940 is about 2940.5679723482. The cubic root of 8646940 is about 205.2520397914.

The spelling of 8646940 in words is "eight million, six hundred forty-six thousand, nine hundred forty".