6345445 has 8 divisors (see below), whose sum is σ = 7633944. Its totient is φ = 5063424.

The previous prime is 6345439. The next prime is 6345457. The reversal of 6345445 is 5445436.

It can be written as a sum of positive squares in 4 ways, for example, as 690561 + 5654884 = 831^2 + 2378^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6345445 is a prime.

It is a d-powerful number, because it can be written as 6⁴ + 3¹¹ + 4³ + 5⁵ + 4⁷ + 4¹¹ + 5⁹ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 897 + ... + 3673.

It is an arithmetic number, because the mean of its divisors is an integer number (954243).

Almost surely, 2^6345445 is an apocalyptic number.

It is an amenable number.

6345445 is a deficient number, since it is larger than the sum of its proper divisors (1288499).

6345445 is a wasteful number, since it uses less digits than its factorization.

6345445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239.

The product of its digits is 28800, while the sum is 31.

The square root of 6345445 is about 2519.0166732279. The cubic root of 6345445 is about 185.1345016531.

Subtracting from 6345445 its reverse (5445436), we obtain a palindrome (900009).

The spelling of 6345445 in words is "six million, three hundred forty-five thousand, four hundred forty-five".