8670816 has 288 divisors, whose sum is σ = 33965568. Its totient is φ = 2027520.

The previous prime is 8670811. The next prime is 8670863. The reversal of 8670816 is 6180768.

It is a tau number, because it is divible by the number of its divisors (288).

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 (8670811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 376981 + ... + 377003.

It is an arithmetic number, because the mean of its divisors is an integer number (117936).

Almost surely, 2^8670816 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 8670816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16982784).

8670816 is an abundant number, since it is smaller than the sum of its proper divisors (25294752).

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

8670816 is a wasteful number, since it uses less digits than its factorization.

8670816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 8670816 is about 2944.6249336715. The cubic root of 8670816 is about 205.4407807057.

The spelling of 8670816 in words is "eight million, six hundred seventy thousand, eight hundred sixteen".