6403369 has 6 divisors (see below), whose sum is σ = 7448874. Its totient is φ = 5488560.

The previous prime is 6403363. The next prime is 6403379. The reversal of 6403369 is 9633046.

6403369 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5697769 + 705600 = 2387^2 + 840^2 .

It is not a de Polignac number, because 6403369 - 2¹⁷ = 6272297 is a prime.

It is a super-2 number, since 2×6403369² = 82006269100322, which contains 22 as substring.

It is a Duffinian number.

6403369 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6403369.

It is not an unprimeable number, because it can be changed into a prime (6403363) 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 5 ways as a sum of consecutive naturals, for example, 65292 + ... + 65389.

It is an arithmetic number, because the mean of its divisors is an integer number (1241479).

Almost surely, 2^6403369 is an apocalyptic number.

It is an amenable number.

6403369 is a deficient number, since it is larger than the sum of its proper divisors (1045505).

6403369 is a wasteful number, since it uses less digits than its factorization.

6403369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130695 (or 130688 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 6403369 is about 2530.4878976197. The cubic root of 6403369 is about 185.6961257814.

The spelling of 6403369 in words is "six million, four hundred three thousand, three hundred sixty-nine".