6541667 has 4 divisors (see below), whose sum is σ = 7136376. Its totient is φ = 5946960.

The previous prime is 6541663. The next prime is 6541687. The reversal of 6541667 is 7661456.

6541667 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6541667 - 2² = 6541663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6541663) 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, 297338 + ... + 297359.

It is an arithmetic number, because the mean of its divisors is an integer number (1784094).

Almost surely, 2^6541667 is an apocalyptic number.

6541667 is a deficient number, since it is larger than the sum of its proper divisors (594709).

6541667 is a wasteful number, since it uses less digits than its factorization.

6541667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594708.

The product of its digits is 30240, while the sum is 35.

The square root of 6541667 is about 2557.6682740340. The cubic root of 6541667 is about 187.0234845204.

The spelling of 6541667 in words is "six million, five hundred forty-one thousand, six hundred sixty-seven".