424286389 has 2 divisors, whose sum is σ = 424286390. Its totient is φ = 424286388.

The previous prime is 424286347. The next prime is 424286393. The reversal of 424286389 is 983682424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226743364 + 197543025 = 15058^2 + 14055^2 .

It is a cyclic number.

It is not a de Polignac number, because 424286389 - 2¹⁷ = 424155317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424286309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212143194 + 212143195.

It is an arithmetic number, because the mean of its divisors is an integer number (212143195).

Almost surely, 2^424286389 is an apocalyptic number.

It is an amenable number.

424286389 is a deficient number, since it is larger than the sum of its proper divisors (1).

424286389 is an equidigital number, since it uses as much as digits as its factorization.

424286389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 46.

The square root of 424286389 is about 20598.2132477553. The cubic root of 424286389 is about 751.4262572603.

The spelling of 424286389 in words is "four hundred twenty-four million, two hundred eighty-six thousand, three hundred eighty-nine".