6617473 has 2 divisors, whose sum is σ = 6617474. Its totient is φ = 6617472.

The previous prime is 6617467. The next prime is 6617483. The reversal of 6617473 is 3747166.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4376464 + 2241009 = 2092^2 + 1497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6617473 is a prime.

It is an Ulam number.

6617473 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6617483) 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, 3308736 + 3308737.

It is an arithmetic number, because the mean of its divisors is an integer number (3308737).

Almost surely, 2^6617473 is an apocalyptic number.

It is an amenable number.

6617473 is a deficient number, since it is larger than the sum of its proper divisors (1).

6617473 is an equidigital number, since it uses as much as digits as its factorization.

6617473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 34.

The square root of 6617473 is about 2572.4449459609. Note that the first 3 decimals coincide. The cubic root of 6617473 is about 187.7431322964.

The spelling of 6617473 in words is "six million, six hundred seventeen thousand, four hundred seventy-three".