424353641 has 2 divisors, whose sum is σ = 424353642. Its totient is φ = 424353640.

The previous prime is 424353617. The next prime is 424353661. The reversal of 424353641 is 146353424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 387932416 + 36421225 = 19696^2 + 6035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424353641 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 424353598 and 424353607.

It is not a weakly prime, because it can be changed into another prime (424353661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212176820 + 212176821.

It is an arithmetic number, because the mean of its divisors is an integer number (212176821).

Almost surely, 2^424353641 is an apocalyptic number.

It is an amenable number.

424353641 is a deficient number, since it is larger than the sum of its proper divisors (1).

424353641 is an equidigital number, since it uses as much as digits as its factorization.

424353641 is an evil number, because the sum of its binary digits is even.

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

The square root of 424353641 is about 20599.8456547616. The cubic root of 424353641 is about 751.4659570559.

The spelling of 424353641 in words is "four hundred twenty-four million, three hundred fifty-three thousand, six hundred forty-one".