6504406 has 4 divisors (see below), whose sum is σ = 9756612. Its totient is φ = 3252202.

The previous prime is 6504401. The next prime is 6504419. The reversal of 6504406 is 6044056.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6504401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1626100 + ... + 1626103.

It is an arithmetic number, because the mean of its divisors is an integer number (2439153).

Almost surely, 2^6504406 is an apocalyptic number.

6504406 is a deficient number, since it is larger than the sum of its proper divisors (3252206).

6504406 is a wasteful number, since it uses less digits than its factorization.

6504406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3252205.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 6504406 is about 2550.3736981078. The cubic root of 6504406 is about 186.6677161222.

The spelling of 6504406 in words is "six million, five hundred four thousand, four hundred six".