6669473 has 2 divisors, whose sum is σ = 6669474. Its totient is φ = 6669472.

The previous prime is 6669469. The next prime is 6669493. The reversal of 6669473 is 3749666.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6615184 + 54289 = 2572^2 + 233^2 .

It is a cyclic number.

It is not a de Polignac number, because 6669473 - 2² = 6669469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6669473.

It is not a weakly prime, because it can be changed into another prime (6669413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3334736 + 3334737.

It is an arithmetic number, because the mean of its divisors is an integer number (3334737).

Almost surely, 2^6669473 is an apocalyptic number.

It is an amenable number.

6669473 is a deficient number, since it is larger than the sum of its proper divisors (1).

6669473 is an equidigital number, since it uses as much as digits as its factorization.

6669473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 41.

The square root of 6669473 is about 2582.5322844061. The cubic root of 6669473 is about 188.2336106793.

The spelling of 6669473 in words is "six million, six hundred sixty-nine thousand, four hundred seventy-three".