6409853 has 4 divisors (see below), whose sum is σ = 6431040. Its totient is φ = 6388668.

The previous prime is 6409849. The next prime is 6409883. The reversal of 6409853 is 3589046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3589046 = 2 ⋅1794523.

It is a cyclic number.

It is not a de Polignac number, because 6409853 - 2² = 6409849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6409883) 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, 10133 + ... + 10746.

It is an arithmetic number, because the mean of its divisors is an integer number (1607760).

Almost surely, 2^6409853 is an apocalyptic number.

It is an amenable number.

6409853 is a deficient number, since it is larger than the sum of its proper divisors (21187).

6409853 is a wasteful number, since it uses less digits than its factorization.

6409853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21186.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 6409853 is about 2531.7687493134. The cubic root of 6409853 is about 185.7587827724.

The spelling of 6409853 in words is "six million, four hundred nine thousand, eight hundred fifty-three".