6444593 has 4 divisors (see below), whose sum is σ = 6581760. Its totient is φ = 6307428.

The previous prime is 6444587. The next prime is 6444601. The reversal of 6444593 is 3954446.

6444593 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3954446 = 2 ⋅1977223.

It is a cyclic number.

It is not a de Polignac number, because 6444593 - 2⁸ = 6444337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6444533) 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, 68513 + ... + 68606.

It is an arithmetic number, because the mean of its divisors is an integer number (1645440).

Almost surely, 2^6444593 is an apocalyptic number.

It is an amenable number.

6444593 is a deficient number, since it is larger than the sum of its proper divisors (137167).

6444593 is a wasteful number, since it uses less digits than its factorization.

6444593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137166.

The product of its digits is 51840, while the sum is 35.

The square root of 6444593 is about 2538.6202945695. The cubic root of 6444593 is about 186.0937689607.

The spelling of 6444593 in words is "six million, four hundred forty-four thousand, five hundred ninety-three".