6709478 has 4 divisors (see below), whose sum is σ = 10064220. Its totient is φ = 3354738.

The previous prime is 6709463. The next prime is 6709487. The reversal of 6709478 is 8749076.

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

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 1677368 + ... + 1677371.

It is an arithmetic number, because the mean of its divisors is an integer number (2516055).

Almost surely, 2^6709478 is an apocalyptic number.

6709478 is a deficient number, since it is larger than the sum of its proper divisors (3354742).

6709478 is a wasteful number, since it uses less digits than its factorization.

6709478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354741.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 6709478 is about 2590.2660095056. The cubic root of 6709478 is about 188.6092165406.

The spelling of 6709478 in words is "six million, seven hundred nine thousand, four hundred seventy-eight".