6441493 has 4 divisors (see below), whose sum is σ = 6460300. Its totient is φ = 6422688.

The previous prime is 6441481. The next prime is 6441497. The reversal of 6441493 is 3941446.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4743684 + 1697809 = 2178^2 + 1303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6441493 is a prime.

It is a d-powerful number, because it can be written as 6⁸ + 4³ + 4⁷ + 1 + 4¹¹ + 9⁶ + 3⁹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6441497) 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, 8880 + ... + 9577.

It is an arithmetic number, because the mean of its divisors is an integer number (1615075).

Almost surely, 2^6441493 is an apocalyptic number.

It is an amenable number.

6441493 is a deficient number, since it is larger than the sum of its proper divisors (18807).

6441493 is a wasteful number, since it uses less digits than its factorization.

6441493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18806.

The product of its digits is 10368, while the sum is 31.

The square root of 6441493 is about 2538.0096532519. The cubic root of 6441493 is about 186.0639256896.

The spelling of 6441493 in words is "six million, four hundred forty-one thousand, four hundred ninety-three".