6706426 has 4 divisors (see below), whose sum is σ = 10059642. Its totient is φ = 3353212.

The previous prime is 6706423. The next prime is 6706459. The reversal of 6706426 is 6246076.

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., 4601025 + 2105401 = 2145^2 + 1451^2 .

It is a super-2 number, since 2×6706426² = 89952299386952, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6706421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1676605 + ... + 1676608.

Almost surely, 2^6706426 is an apocalyptic number.

6706426 is a deficient number, since it is larger than the sum of its proper divisors (3353216).

6706426 is a wasteful number, since it uses less digits than its factorization.

6706426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353215.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 6706426 is about 2589.6768138129. The cubic root of 6706426 is about 188.5806140853.

The spelling of 6706426 in words is "six million, seven hundred six thousand, four hundred twenty-six".