6909506 has 4 divisors (see below), whose sum is σ = 10364262. Its totient is φ = 3454752.

The previous prime is 6909503. The next prime is 6909533. The reversal of 6909506 is 6059096.

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., 4583881 + 2325625 = 2141^2 + 1525^2 .

It is not an unprimeable number, because it can be changed into a prime (6909503) 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, 1727375 + ... + 1727378.

Almost surely, 2^6909506 is an apocalyptic number.

6909506 is a deficient number, since it is larger than the sum of its proper divisors (3454756).

6909506 is a wasteful number, since it uses less digits than its factorization.

6909506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454755.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 6909506 is about 2628.5939207112. The cubic root of 6909506 is about 190.4652127265.

The spelling of 6909506 in words is "six million, nine hundred nine thousand, five hundred six".