6667545 has 16 divisors (see below), whose sum is σ = 10707840. Its totient is φ = 3542784.

The previous prime is 6667541. The next prime is 6667589. The reversal of 6667545 is 5457666.

It is not a de Polignac number, because 6667545 - 2² = 6667541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6667541) 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 15 ways as a sum of consecutive naturals, for example, 4396 + ... + 5714.

It is an arithmetic number, because the mean of its divisors is an integer number (669240).

Almost surely, 2^6667545 is an apocalyptic number.

It is an amenable number.

6667545 is a deficient number, since it is larger than the sum of its proper divisors (4040295).

6667545 is a wasteful number, since it uses less digits than its factorization.

6667545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664.

The product of its digits is 151200, while the sum is 39.

The square root of 6667545 is about 2582.1589803883. The cubic root of 6667545 is about 188.2154708464.

The spelling of 6667545 in words is "six million, six hundred sixty-seven thousand, five hundred forty-five".