8771664 has 80 divisors (see below), whose sum is σ = 25444800. Its totient is φ = 2580480.

The previous prime is 8771647. The next prime is 8771669. The reversal of 8771664 is 4661778.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8771669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19312 + ... + 19760.

It is an arithmetic number, because the mean of its divisors is an integer number (318060).

Almost surely, 2^8771664 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 8771664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12722400).

8771664 is an abundant number, since it is smaller than the sum of its proper divisors (16673136).

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

8771664 is a wasteful number, since it uses less digits than its factorization.

8771664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508 (or 502 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 8771664 is about 2961.6995121045. The cubic root of 8771664 is about 206.2341886869.

The spelling of 8771664 in words is "eight million, seven hundred seventy-one thousand, six hundred sixty-four".