6578449 has 4 divisors (see below), whose sum is σ = 6718464. Its totient is φ = 6438436.

The previous prime is 6578431. The next prime is 6578461. The reversal of 6578449 is 9448756.

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 a de Polignac number, because none of the positive numbers 2^k-6578449 is a prime.

It is a Duffinian number.

6578449 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6578749) 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, 69937 + ... + 70030.

It is an arithmetic number, because the mean of its divisors is an integer number (1679616).

Almost surely, 2^6578449 is an apocalyptic number.

It is an amenable number.

6578449 is a deficient number, since it is larger than the sum of its proper divisors (140015).

6578449 is a wasteful number, since it uses less digits than its factorization.

6578449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140014.

The product of its digits is 241920, while the sum is 43.

The square root of 6578449 is about 2564.8487284828. The cubic root of 6578449 is about 187.3733568510.

The spelling of 6578449 in words is "six million, five hundred seventy-eight thousand, four hundred forty-nine".