8216670 has 64 divisors (see below), whose sum is σ = 24592896. Its totient is φ = 1706880.

The previous prime is 8216669. The next prime is 8216671. The reversal of 8216670 is 766128.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8216669) and next prime (8216671).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8216671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532 + ... + 4088.

It is an arithmetic number, because the mean of its divisors is an integer number (384264).

Almost surely, 2^8216670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8216670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12296448).

8216670 is an abundant number, since it is smaller than the sum of its proper divisors (16376226).

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

8216670 is a wasteful number, since it uses less digits than its factorization.

8216670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3585.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 8216670 is about 2866.4734431004. The cubic root of 8216670 is about 201.7895236034.

The spelling of 8216670 in words is "eight million, two hundred sixteen thousand, six hundred seventy".