6466401 has 12 divisors (see below), whose sum is σ = 9539712. Its totient is φ = 4218936.

The previous prime is 6466399. The next prime is 6466417. The reversal of 6466401 is 1046646.

It is not a de Polignac number, because 6466401 - 2¹ = 6466399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7221 + ... + 8066.

It is an arithmetic number, because the mean of its divisors is an integer number (794976).

Almost surely, 2^6466401 is an apocalyptic number.

It is an amenable number.

6466401 is a deficient number, since it is larger than the sum of its proper divisors (3073311).

6466401 is a wasteful number, since it uses less digits than its factorization.

6466401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15340 (or 15337 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 6466401 is about 2542.9119135353. The cubic root of 6466401 is about 186.3034415656.

The spelling of 6466401 in words is "six million, four hundred sixty-six thousand, four hundred one".