6409667 has 16 divisors (see below), whose sum is σ = 7361280. Its totient is φ = 5527200.

The previous prime is 6409651. The next prime is 6409673. The reversal of 6409667 is 7669046.

It is a cyclic number.

It is not a de Polignac number, because 6409667 - 2⁴ = 6409651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6409667.

It is not an unprimeable number, because it can be changed into a prime (6409607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22508 + ... + 22790.

It is an arithmetic number, because the mean of its divisors is an integer number (460080).

Almost surely, 2^6409667 is an apocalyptic number.

6409667 is a deficient number, since it is larger than the sum of its proper divisors (951613).

6409667 is a wasteful number, since it uses less digits than its factorization.

6409667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394.

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

The square root of 6409667 is about 2531.7320158342. The cubic root of 6409667 is about 185.7569859830.

The spelling of 6409667 in words is "six million, four hundred nine thousand, six hundred sixty-seven".