424004869 has 2 divisors, whose sum is σ = 424004870. Its totient is φ = 424004868.

The previous prime is 424004863. The next prime is 424004879. The reversal of 424004869 is 968400424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 388602369 + 35402500 = 19713^2 + 5950^2 .

It is a cyclic number.

It is not a de Polignac number, because 424004869 - 2¹⁹ = 423480581 is a prime.

It is a super-2 number, since 2×424004869² = 359560257871414322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424004863) 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, 212002434 + 212002435.

It is an arithmetic number, because the mean of its divisors is an integer number (212002435).

Almost surely, 2^424004869 is an apocalyptic number.

It is an amenable number.

424004869 is a deficient number, since it is larger than the sum of its proper divisors (1).

424004869 is an equidigital number, since it uses as much as digits as its factorization.

424004869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 424004869 is about 20591.3785114062. The cubic root of 424004869 is about 751.2600265180.

The spelling of 424004869 in words is "four hundred twenty-four million, four thousand, eight hundred sixty-nine".