8709229664 has 48 divisors (see below), whose sum is σ = 17571384432. Its totient is φ = 4247612928.

The previous prime is 8709229663. The next prime is 8709229699. The reversal of 8709229664 is 4669229078.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8709229663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278567 + ... + 308249.

It is an arithmetic number, because the mean of its divisors is an integer number (366070509).

Almost surely, 2^8709229664 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 8709229664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8785692216).

8709229664 is an abundant number, since it is smaller than the sum of its proper divisors (8862154768).

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

8709229664 is a wasteful number, since it uses less digits than its factorization.

8709229664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29919 (or 29911 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 53.

The square root of 8709229664 is about 93323.2536080906. The cubic root of 8709229664 is about 2057.4371673348.

The spelling of 8709229664 in words is "eight billion, seven hundred nine million, two hundred twenty-nine thousand, six hundred sixty-four".