3005623 has 2 divisors, whose sum is σ = 3005624. Its totient is φ = 3005622.

The previous prime is 3005609. The next prime is 3005627. The reversal of 3005623 is 3265003.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3005623 - 2²¹ = 908471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3005623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3005627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1502811 + 1502812.

It is an arithmetic number, because the mean of its divisors is an integer number (1502812).

Almost surely, 2^3005623 is an apocalyptic number.

3005623 is a deficient number, since it is larger than the sum of its proper divisors (1).

3005623 is an equidigital number, since it uses as much as digits as its factorization.

3005623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 3005623 is about 1733.6732679487. The cubic root of 3005623 is about 144.3150093396.

The spelling of 3005623 in words is "three million, five thousand, six hundred twenty-three".