6443834 has 4 divisors (see below), whose sum is σ = 9665754. Its totient is φ = 3221916.

The previous prime is 6443797. The next prime is 6443837. The reversal of 6443834 is 4383446.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4383446 = 2 ⋅2191723.

It can be written as a sum of positive squares in only one way, i.e., 3433609 + 3010225 = 1853^2 + 1735^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6443834.

It is not an unprimeable number, because it can be changed into a prime (6443837) 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, 1610957 + ... + 1610960.

Almost surely, 2^6443834 is an apocalyptic number.

6443834 is a deficient number, since it is larger than the sum of its proper divisors (3221920).

6443834 is a wasteful number, since it uses less digits than its factorization.

6443834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221919.

The product of its digits is 27648, while the sum is 32.

The square root of 6443834 is about 2538.4707995169. The cubic root of 6443834 is about 186.0864630576.

The spelling of 6443834 in words is "six million, four hundred forty-three thousand, eight hundred thirty-four".