4505623 has 2 divisors, whose sum is σ = 4505624. Its totient is φ = 4505622.

The previous prime is 4505621. The next prime is 4505647. The reversal of 4505623 is 3265054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4505623 - 2¹ = 4505621 is a prime.

Together with 4505621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4505621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2252811 + 2252812.

It is an arithmetic number, because the mean of its divisors is an integer number (2252812).

Almost surely, 2^4505623 is an apocalyptic number.

4505623 is a deficient number, since it is larger than the sum of its proper divisors (1).

4505623 is an equidigital number, since it uses as much as digits as its factorization.

4505623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 4505623 is about 2122.6452836025. The cubic root of 4505623 is about 165.1650995147.

The spelling of 4505623 in words is "four million, five hundred five thousand, six hundred twenty-three".