4245623 has 2 divisors, whose sum is σ = 4245624. Its totient is φ = 4245622.

The previous prime is 4245617. The next prime is 4245643. The reversal of 4245623 is 3265424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4245623 - 2¹⁸ = 3983479 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4245592 and 4245601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4245613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122811 + 2122812.

It is an arithmetic number, because the mean of its divisors is an integer number (2122812).

Almost surely, 2^4245623 is an apocalyptic number.

4245623 is a deficient number, since it is larger than the sum of its proper divisors (1).

4245623 is an equidigital number, since it uses as much as digits as its factorization.

4245623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 26.

The square root of 4245623 is about 2060.4909609120. The cubic root of 4245623 is about 161.9249639797.

The spelling of 4245623 in words is "four million, two hundred forty-five thousand, six hundred twenty-three".