6449947 has 8 divisors (see below), whose sum is σ = 7402752. Its totient is φ = 5505000.

The previous prime is 6449923. The next prime is 6450007. The reversal of 6449947 is 7499446.

6449947 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6449947 - 2¹¹ = 6447899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6449917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79 + ... + 3592.

It is an arithmetic number, because the mean of its divisors is an integer number (925344).

Almost surely, 2^6449947 is an apocalyptic number.

6449947 is a deficient number, since it is larger than the sum of its proper divisors (952805).

6449947 is a wasteful number, since it uses less digits than its factorization.

6449947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929.

The product of its digits is 217728, while the sum is 43.

The square root of 6449947 is about 2539.6745854538. The cubic root of 6449947 is about 186.1452886483.

It can be divided in two parts, 64499 and 47, that added together give a palindrome (64546).

The spelling of 6449947 in words is "six million, four hundred forty-nine thousand, nine hundred forty-seven".