6166667 has 4 divisors (see below), whose sum is σ = 6641040. Its totient is φ = 5692296.

The previous prime is 6166639. The next prime is 6166669. The reversal of 6166667 is 7666616.

It is a happy number.

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 6166667 - 2¹² = 6162571 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6166667.

It is not an unprimeable number, because it can be changed into a prime (6166669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237167 + ... + 237192.

It is an arithmetic number, because the mean of its divisors is an integer number (1660260).

Almost surely, 2^6166667 is an apocalyptic number.

6166667 is a deficient number, since it is larger than the sum of its proper divisors (474373).

6166667 is a wasteful number, since it uses less digits than its factorization.

6166667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474372.

The product of its digits is 54432, while the sum is 38.

The square root of 6166667 is about 2483.2774714075. The cubic root of 6166667 is about 183.3792388260.

The spelling of 6166667 in words is "six million, one hundred sixty-six thousand, six hundred sixty-seven".