424304609 has 2 divisors, whose sum is σ = 424304610. Its totient is φ = 424304608.

The previous prime is 424304537. The next prime is 424304611. The reversal of 424304609 is 906403424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331240000 + 93064609 = 18200^2 + 9647^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424304609 is a prime.

Together with 424304611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (424304669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212152304 + 212152305.

It is an arithmetic number, because the mean of its divisors is an integer number (212152305).

Almost surely, 2^424304609 is an apocalyptic number.

It is an amenable number.

424304609 is a deficient number, since it is larger than the sum of its proper divisors (1).

424304609 is an equidigital number, since it uses as much as digits as its factorization.

424304609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 424304609 is about 20598.6555143776. The cubic root of 424304609 is about 751.4370131952.

The spelling of 424304609 in words is "four hundred twenty-four million, three hundred four thousand, six hundred nine".