6618167 has 4 divisors (see below), whose sum is σ = 6655320. Its totient is φ = 6581016.

The previous prime is 6618127. The next prime is 6618169. The reversal of 6618167 is 7618166.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6618167 - 2⁶ = 6618103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6618169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18308 + ... + 18665.

It is an arithmetic number, because the mean of its divisors is an integer number (1663830).

Almost surely, 2^6618167 is an apocalyptic number.

6618167 is a deficient number, since it is larger than the sum of its proper divisors (37153).

6618167 is a wasteful number, since it uses less digits than its factorization.

6618167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37152.

The product of its digits is 12096, while the sum is 35.

The square root of 6618167 is about 2572.5798335523. The cubic root of 6618167 is about 187.7496951833.

Subtracting 6618167 from its reverse (7618166), we obtain a palindrome (999999).

The spelling of 6618167 in words is "six million, six hundred eighteen thousand, one hundred sixty-seven".