604642403 has 2 divisors, whose sum is σ = 604642404. Its totient is φ = 604642402.

The previous prime is 604642361. The next prime is 604642411. The reversal of 604642403 is 304246406.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 604642403 - 2¹⁶ = 604576867 is a prime.

It is a super-2 number, since 2×604642403² = 731184871011228818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (604642433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302321201 + 302321202.

It is an arithmetic number, because the mean of its divisors is an integer number (302321202).

Almost surely, 2^604642403 is an apocalyptic number.

604642403 is a deficient number, since it is larger than the sum of its proper divisors (1).

604642403 is an equidigital number, since it uses as much as digits as its factorization.

604642403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 604642403 is about 24589.4774852985. The cubic root of 604642403 is about 845.6023868940.

Adding to 604642403 its reverse (304246406), we get a palindrome (908888809).

The spelling of 604642403 in words is "six hundred four million, six hundred forty-two thousand, four hundred three".