6445353 has 4 divisors (see below), whose sum is σ = 8593808. Its totient is φ = 4296900.

The previous prime is 6445319. The next prime is 6445381. The reversal of 6445353 is 3535446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6445353 - 2¹⁰ = 6444329 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6445353.

It is not an unprimeable number, because it can be changed into a prime (6445393) 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, 1074223 + ... + 1074228.

It is an arithmetic number, because the mean of its divisors is an integer number (2148452).

Almost surely, 2^6445353 is an apocalyptic number.

It is an amenable number.

6445353 is a deficient number, since it is larger than the sum of its proper divisors (2148455).

6445353 is a wasteful number, since it uses less digits than its factorization.

6445353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148454.

The product of its digits is 21600, while the sum is 30.

The square root of 6445353 is about 2538.7699777648. The cubic root of 6445353 is about 186.1010839148.

The spelling of 6445353 in words is "six million, four hundred forty-five thousand, three hundred fifty-three".