673224403 has 2 divisors, whose sum is σ = 673224404. Its totient is φ = 673224402.

The previous prime is 673224379. The next prime is 673224413. The reversal of 673224403 is 304422376.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 673224403 - 2¹³ = 673216211 is a prime.

It is not a weakly prime, because it can be changed into another prime (673224413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336612201 + 336612202.

It is an arithmetic number, because the mean of its divisors is an integer number (336612202).

Almost surely, 2^673224403 is an apocalyptic number.

673224403 is a deficient number, since it is larger than the sum of its proper divisors (1).

673224403 is an equidigital number, since it uses as much as digits as its factorization.

673224403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 673224403 is about 25946.5682316564. The cubic root of 673224403 is about 876.4354790603.

Adding to 673224403 its reverse (304422376), we get a palindrome (977646779).

The spelling of 673224403 in words is "six hundred seventy-three million, two hundred twenty-four thousand, four hundred three".