8146866 has 64 divisors (see below), whose sum is σ = 20579328. Its totient is φ = 2092608.

The previous prime is 8146843. The next prime is 8146867. The reversal of 8146866 is 6686418.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8146867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23305 + ... + 23651.

It is an arithmetic number, because the mean of its divisors is an integer number (321552).

Almost surely, 2^8146866 is an apocalyptic number.

8146866 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 8146866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10289664).

8146866 is an abundant number, since it is smaller than the sum of its proper divisors (12432462).

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

8146866 is a wasteful number, since it uses less digits than its factorization.

8146866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415.

The product of its digits is 55296, while the sum is 39.

The square root of 8146866 is about 2854.2715357863. The cubic root of 8146866 is about 201.2164693439.

The spelling of 8146866 in words is "eight million, one hundred forty-six thousand, eight hundred sixty-six".