6403273 has 2 divisors, whose sum is σ = 6403274. Its totient is φ = 6403272.

The previous prime is 6403219. The next prime is 6403279. The reversal of 6403273 is 3723046.

6403273 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3489424 + 2913849 = 1868^2 + 1707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6403273 is a prime.

It is a super-2 number, since 2×6403273² = 82003810225058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6403279) 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 as a sum of consecutive naturals, namely, 3201636 + 3201637.

It is an arithmetic number, because the mean of its divisors is an integer number (3201637).

Almost surely, 2^6403273 is an apocalyptic number.

It is an amenable number.

6403273 is a deficient number, since it is larger than the sum of its proper divisors (1).

6403273 is an equidigital number, since it uses as much as digits as its factorization.

6403273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 6403273 is about 2530.4689288746. The cubic root of 6403273 is about 185.6951977846.

The spelling of 6403273 in words is "six million, four hundred three thousand, two hundred seventy-three".