8550864 has 120 divisors (see below), whose sum is σ = 29016000. Its totient is φ = 2294784.

The previous prime is 8550859. The next prime is 8550869. The reversal of 8550864 is 4680558.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8550859) and next prime (8550869).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8550869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16887 + ... + 17385.

It is an arithmetic number, because the mean of its divisors is an integer number (241800).

Almost surely, 2^8550864 is an apocalyptic number.

8550864 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8550864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14508000).

8550864 is an abundant number, since it is smaller than the sum of its proper divisors (20465136).

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

8550864 is a wasteful number, since it uses less digits than its factorization.

8550864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 8550864 is about 2924.1860405932. The cubic root of 8550864 is about 204.4890228703.

The spelling of 8550864 in words is "eight million, five hundred fifty thousand, eight hundred sixty-four".