6403471 has 4 divisors (see below), whose sum is σ = 6411832. Its totient is φ = 6395112.

The previous prime is 6403469. The next prime is 6403489. The reversal of 6403471 is 1743046.

6403471 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 6403471 - 2¹ = 6403469 is a prime.

It is a super-3 number, since 3×6403471³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6403451) 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 3 ways as a sum of consecutive naturals, for example, 2901 + ... + 4606.

It is an arithmetic number, because the mean of its divisors is an integer number (1602958).

Almost surely, 2^6403471 is an apocalyptic number.

6403471 is a deficient number, since it is larger than the sum of its proper divisors (8361).

6403471 is an equidigital number, since it uses as much as digits as its factorization.

6403471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8360.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 6403471 is about 2530.5080517556. The cubic root of 6403471 is about 185.6971117678.

The spelling of 6403471 in words is "six million, four hundred three thousand, four hundred seventy-one".