6478834 has 4 divisors (see below), whose sum is σ = 9718254. Its totient is φ = 3239416.

The previous prime is 6478831. The next prime is 6478841. The reversal of 6478834 is 4388746.

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

It can be written as a sum of positive squares in only one way, i.e., 4853209 + 1625625 = 2203^2 + 1275^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6478831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1619707 + ... + 1619710.

Almost surely, 2^6478834 is an apocalyptic number.

6478834 is a deficient number, since it is larger than the sum of its proper divisors (3239420).

6478834 is a wasteful number, since it uses less digits than its factorization.

6478834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239419.

The product of its digits is 129024, while the sum is 40.

The square root of 6478834 is about 2545.3553779384. The cubic root of 6478834 is about 186.4227674855.

The spelling of 6478834 in words is "six million, four hundred seventy-eight thousand, eight hundred thirty-four".