424623289 has 2 divisors, whose sum is σ = 424623290. Its totient is φ = 424623288.

The previous prime is 424623281. The next prime is 424623301. The reversal of 424623289 is 982326424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 259757689 + 164865600 = 16117^2 + 12840^2 .

It is a cyclic number.

It is not a de Polignac number, because 424623289 - 2³ = 424623281 is a prime.

It is a super-2 number, since 2×424623289² = 360609875122355042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (424623281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212311644 + 212311645.

It is an arithmetic number, because the mean of its divisors is an integer number (212311645).

Almost surely, 2^424623289 is an apocalyptic number.

It is an amenable number.

424623289 is a deficient number, since it is larger than the sum of its proper divisors (1).

424623289 is an equidigital number, since it uses as much as digits as its factorization.

424623289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 40.

The square root of 424623289 is about 20606.3895187876. The cubic root of 424623289 is about 751.6250919287.

The spelling of 424623289 in words is "four hundred twenty-four million, six hundred twenty-three thousand, two hundred eighty-nine".