8772816 has 80 divisors (see below), whose sum is σ = 25873344. Its totient is φ = 2537472.

The previous prime is 8772809. The next prime is 8772839. The reversal of 8772816 is 6182778.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10195 + ... + 11021.

Almost surely, 2^8772816 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 8772816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12936672).

8772816 is an abundant number, since it is smaller than the sum of its proper divisors (17100528).

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

8772816 is a wasteful number, since it uses less digits than its factorization.

8772816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 862 counting only the distinct ones).

The product of its digits is 37632, while the sum is 39.

The square root of 8772816 is about 2961.8939886498. The cubic root of 8772816 is about 206.2432166731.

The spelling of 8772816 in words is "eight million, seven hundred seventy-two thousand, eight hundred sixteen".