6616223 has 2 divisors, whose sum is σ = 6616224. Its totient is φ = 6616222.

The previous prime is 6616219. The next prime is 6616231. The reversal of 6616223 is 3226166.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6616223 - 2² = 6616219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6616192 and 6616201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6616283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3308111 + 3308112.

It is an arithmetic number, because the mean of its divisors is an integer number (3308112).

Almost surely, 2^6616223 is an apocalyptic number.

6616223 is a deficient number, since it is larger than the sum of its proper divisors (1).

6616223 is an equidigital number, since it uses as much as digits as its factorization.

6616223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

The square root of 6616223 is about 2572.2019749623. The cubic root of 6616223 is about 187.7313103772.

The spelling of 6616223 in words is "six million, six hundred sixteen thousand, two hundred twenty-three".