4566623 has 2 divisors, whose sum is σ = 4566624. Its totient is φ = 4566622.

The previous prime is 4566607. The next prime is 4566629. The reversal of 4566623 is 3266654.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4566623 - 2⁴ = 4566607 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4566623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4566629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2283311 + 2283312.

It is an arithmetic number, because the mean of its divisors is an integer number (2283312).

Almost surely, 2^4566623 is an apocalyptic number.

4566623 is a deficient number, since it is larger than the sum of its proper divisors (1).

4566623 is an equidigital number, since it uses as much as digits as its factorization.

4566623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 32.

The square root of 4566623 is about 2136.9658396895. The cubic root of 4566623 is about 165.9071310026.

The spelling of 4566623 in words is "four million, five hundred sixty-six thousand, six hundred twenty-three".