6909473 has 2 divisors, whose sum is σ = 6909474. Its totient is φ = 6909472.

The previous prime is 6909467. The next prime is 6909493. The reversal of 6909473 is 3749096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4635409 + 2274064 = 2153^2 + 1508^2 .

It is a cyclic number.

It is not a de Polignac number, because 6909473 - 2⁴ = 6909457 is a prime.

It is not a weakly prime, because it can be changed into another prime (6909493) 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, 3454736 + 3454737.

It is an arithmetic number, because the mean of its divisors is an integer number (3454737).

Almost surely, 2^6909473 is an apocalyptic number.

It is an amenable number.

6909473 is a deficient number, since it is larger than the sum of its proper divisors (1).

6909473 is an equidigital number, since it uses as much as digits as its factorization.

6909473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 6909473 is about 2628.5876435835. The cubic root of 6909473 is about 190.4649095035.

The spelling of 6909473 in words is "six million, nine hundred nine thousand, four hundred seventy-three".