424431653 has 2 divisors, whose sum is σ = 424431654. Its totient is φ = 424431652.

The previous prime is 424431649. The next prime is 424431677. The reversal of 424431653 is 356134424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325369444 + 99062209 = 18038^2 + 9953^2 .

It is a cyclic number.

It is not a de Polignac number, because 424431653 - 2² = 424431649 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_22567820 and since 424431653 and 22567820 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424431613) 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, 212215826 + 212215827.

It is an arithmetic number, because the mean of its divisors is an integer number (212215827).

Almost surely, 2^424431653 is an apocalyptic number.

It is an amenable number.

424431653 is a deficient number, since it is larger than the sum of its proper divisors (1).

424431653 is an equidigital number, since it uses as much as digits as its factorization.

424431653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 32.

The square root of 424431653 is about 20601.7390770779. The cubic root of 424431653 is about 751.5120033756.

The spelling of 424431653 in words is "four hundred twenty-four million, four hundred thirty-one thousand, six hundred fifty-three".