435641 has 2 divisors, whose sum is σ = 435642. Its totient is φ = 435640.

The previous prime is 435637. The next prime is 435647. The reversal of 435641 is 146534.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 395641 + 40000 = 629^2 + 200^2 .

It is a cyclic number.

It is not a de Polignac number, because 435641 - 2² = 435637 is a prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (435647) 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, 217820 + 217821.

It is an arithmetic number, because the mean of its divisors is an integer number (217821).

2⁴³⁵⁶⁴¹ is an apocalyptic number.

It is an amenable number.

435641 is a deficient number, since it is larger than the sum of its proper divisors (1).

435641 is an equidigital number, since it uses as much as digits as its factorization.

435641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 435641 is about 660.0310598752. The cubic root of 435641 is about 75.8070474717.

The spelling of 435641 in words is "four hundred thirty-five thousand, six hundred forty-one".