6447446 has 8 divisors (see below), whose sum is σ = 9683904. Its totient is φ = 3219480.

The previous prime is 6447443. The next prime is 6447449.

6447446 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (6447443) and next prime (6447449).

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6447443) 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, 356 + ... + 3608.

It is an arithmetic number, because the mean of its divisors is an integer number (1210488).

Almost surely, 2^6447446 is an apocalyptic number.

6447446 is a deficient number, since it is larger than the sum of its proper divisors (3236458).

6447446 is a wasteful number, since it uses less digits than its factorization.

6447446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4246.

The product of its digits is 64512, while the sum is 35.

The square root of 6447446 is about 2539.1821517961. The cubic root of 6447446 is about 186.1212259414.

The spelling of 6447446 in words is "six million, four hundred forty-seven thousand, four hundred forty-six".