6623417 has 2 divisors, whose sum is σ = 6623418. Its totient is φ = 6623416.

The previous prime is 6623413. The next prime is 6623423. The reversal of 6623417 is 7143266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4239481 + 2383936 = 2059^2 + 1544^2 .

It is a cyclic number.

It is not a de Polignac number, because 6623417 - 2² = 6623413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6623417.

It is not a weakly prime, because it can be changed into another prime (6623411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311708 + 3311709.

It is an arithmetic number, because the mean of its divisors is an integer number (3311709).

Almost surely, 2^6623417 is an apocalyptic number.

It is an amenable number.

6623417 is a deficient number, since it is larger than the sum of its proper divisors (1).

6623417 is an equidigital number, since it uses as much as digits as its factorization.

6623417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 6623417 is about 2573.6000077712. The cubic root of 6623417 is about 187.7993275249.

The spelling of 6623417 in words is "six million, six hundred twenty-three thousand, four hundred seventeen".