8620668 has 108 divisors (see below), whose sum is σ = 26432952. Its totient is φ = 2449440.

The previous prime is 8620663. The next prime is 8620673. The reversal of 8620668 is 8660268.

It is an interprime number because it is at equal distance from previous prime (8620663) and next prime (8620673).

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8620663) 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 35 ways as a sum of consecutive naturals, for example, 47538 + ... + 47718.

Almost surely, 2^8620668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8620668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13216476).

8620668 is an abundant number, since it is smaller than the sum of its proper divisors (17812284).

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

8620668 is a wasteful number, since it uses less digits than its factorization.

8620668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 8620668 is about 2936.0974098282. The cubic root of 8620668 is about 205.0439564674.

The spelling of 8620668 in words is "eight million, six hundred twenty thousand, six hundred sixty-eight".