6864166 has 24 divisors (see below), whose sum is σ = 11143440. Its totient is φ = 3164832.

The previous prime is 6864139. The next prime is 6864167. The reversal of 6864166 is 6614686.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6864167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62920 + ... + 63028.

It is an arithmetic number, because the mean of its divisors is an integer number (464310).

Almost surely, 2^6864166 is an apocalyptic number.

6864166 is a deficient number, since it is larger than the sum of its proper divisors (4279274).

6864166 is a wasteful number, since it uses less digits than its factorization.

6864166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 171 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 6864166 is about 2619.9553431309. The cubic root of 6864166 is about 190.0476888604.

The spelling of 6864166 in words is "six million, eight hundred sixty-four thousand, one hundred sixty-six".