6447734 has 4 divisors (see below), whose sum is σ = 9671604. Its totient is φ = 3223866.

The previous prime is 6447733. The next prime is 6447737. The reversal of 6447734 is 4377446.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6447694 and 6447703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6447733) by changing a digit.

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 as a sum of consecutive naturals, namely, 1611932 + ... + 1611935.

It is an arithmetic number, because the mean of its divisors is an integer number (2417901).

Almost surely, 2^6447734 is an apocalyptic number.

6447734 is a deficient number, since it is larger than the sum of its proper divisors (3223870).

6447734 is a wasteful number, since it uses less digits than its factorization.

6447734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223869.

The product of its digits is 56448, while the sum is 35.

The square root of 6447734 is about 2539.2388623365. The cubic root of 6447734 is about 186.1239971738.

The spelling of 6447734 in words is "six million, four hundred forty-seven thousand, seven hundred thirty-four".