6447974 has 8 divisors (see below), whose sum is σ = 10416000. Its totient is φ = 2975976.

The previous prime is 6447967. The next prime is 6447983. The reversal of 6447974 is 4797446.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123974 + ... + 124025.

It is an arithmetic number, because the mean of its divisors is an integer number (1302000).

Almost surely, 2^6447974 is an apocalyptic number.

6447974 is a deficient number, since it is larger than the sum of its proper divisors (3968026).

6447974 is a wasteful number, since it uses less digits than its factorization.

6447974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248014.

The product of its digits is 169344, while the sum is 41.

The square root of 6447974 is about 2539.2861201527. The cubic root of 6447974 is about 186.1263064712.

The spelling of 6447974 in words is "six million, four hundred forty-seven thousand, nine hundred seventy-four".