6447433 has 4 divisors (see below), whose sum is σ = 6535828. Its totient is φ = 6359040.

The previous prime is 6447421. The next prime is 6447443. The reversal of 6447433 is 3347446.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3347446 = 2 ⋅1673723.

It can be written as a sum of positive squares in 2 ways, for example, as 5071504 + 1375929 = 2252^2 + 1173^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6447433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6447395 and 6447404.

It is not an unprimeable number, because it can be changed into a prime (6447443) 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, 44088 + ... + 44233.

It is an arithmetic number, because the mean of its divisors is an integer number (1633957).

Almost surely, 2^6447433 is an apocalyptic number.

It is an amenable number.

6447433 is a deficient number, since it is larger than the sum of its proper divisors (88395).

6447433 is an equidigital number, since it uses as much as digits as its factorization.

6447433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88394.

The product of its digits is 24192, while the sum is 31.

The square root of 6447433 is about 2539.1795919155. The cubic root of 6447433 is about 186.1211008491.

The spelling of 6447433 in words is "six million, four hundred forty-seven thousand, four hundred thirty-three".