609403 has 2 divisors, whose sum is σ = 609404. Its totient is φ = 609402.

The previous prime is 609397. The next prime is 609407. The reversal of 609403 is 304906.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-609403 is a prime.

It is an Ulam number.

609403 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (609407) 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, 304701 + 304702.

It is an arithmetic number, because the mean of its divisors is an integer number (304702).

2⁶⁰⁹⁴⁰³ is an apocalyptic number.

609403 is a deficient number, since it is larger than the sum of its proper divisors (1).

609403 is an equidigital number, since it uses as much as digits as its factorization.

609403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 609403 is about 780.6426839470. The cubic root of 609403 is about 84.7815845706.

The spelling of 609403 in words is "six hundred nine thousand, four hundred three".