6228647449 has 4 divisors (see below), whose sum is σ = 6235515664. Its totient is φ = 6221779236.

The previous prime is 6228647423. The next prime is 6228647461. The reversal of 6228647449 is 9447468226.

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 cyclic number.

It is not a de Polignac number, because 6228647449 - 2⁵ = 6228647417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6228647396 and 6228647405.

It is not an unprimeable number, because it can be changed into a prime (6228647419) 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, 3432747 + ... + 3434560.

It is an arithmetic number, because the mean of its divisors is an integer number (1558878916).

Almost surely, 2^6228647449 is an apocalyptic number.

It is an amenable number.

6228647449 is a deficient number, since it is larger than the sum of its proper divisors (6868215).

6228647449 is an equidigital number, since it uses as much as digits as its factorization.

6228647449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6868214.

The product of its digits is 4644864, while the sum is 52.

The square root of 6228647449 is about 78921.7805741862. The cubic root of 6228647449 is about 1839.9156633722.

The spelling of 6228647449 in words is "six billion, two hundred twenty-eight million, six hundred forty-seven thousand, four hundred forty-nine".