603643423 has 2 divisors, whose sum is σ = 603643424. Its totient is φ = 603643422.

The previous prime is 603643409. The next prime is 603643427. The reversal of 603643423 is 324346306.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 603643423 - 2⁹ = 603642911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (603643427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301821711 + 301821712.

It is an arithmetic number, because the mean of its divisors is an integer number (301821712).

Almost surely, 2^603643423 is an apocalyptic number.

603643423 is a deficient number, since it is larger than the sum of its proper divisors (1).

603643423 is an equidigital number, since it uses as much as digits as its factorization.

603643423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 31.

The square root of 603643423 is about 24569.1559277074. The cubic root of 603643423 is about 845.1364335099.

Adding to 603643423 its reverse (324346306), we get a palindrome (927989729).

The spelling of 603643423 in words is "six hundred three million, six hundred forty-three thousand, four hundred twenty-three".