6404849 has 8 divisors (see below), whose sum is σ = 7056192. Its totient is φ = 5765040.

The previous prime is 6404837. The next prime is 6404873. The reversal of 6404849 is 9484046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6404849 - 2¹² = 6400753 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6404809) 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 7 ways as a sum of consecutive naturals, for example, 1694 + ... + 3959.

It is an arithmetic number, because the mean of its divisors is an integer number (882024).

Almost surely, 2^6404849 is an apocalyptic number.

It is an amenable number.

6404849 is a deficient number, since it is larger than the sum of its proper divisors (651343).

6404849 is a wasteful number, since it uses less digits than its factorization.

6404849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5767.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 6404849 is about 2530.7803144485. The cubic root of 6404849 is about 185.7104312246.

The spelling of 6404849 in words is "six million, four hundred four thousand, eight hundred forty-nine".