4035641 has 2 divisors, whose sum is σ = 4035642. Its totient is φ = 4035640.

The previous prime is 4035637. The next prime is 4035653. The reversal of 4035641 is 1465304.

4035641 = 1420² + 1421².

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., 2019241 + 2016400 = 1421^2 + 1420^2 .

It is a cyclic number.

It is not a de Polignac number, because 4035641 - 2² = 4035637 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4035601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2017820 + 2017821.

It is an arithmetic number, because the mean of its divisors is an integer number (2017821).

Almost surely, 2^4035641 is an apocalyptic number.

4035641 is the 1421-st centered square number.

It is an amenable number.

4035641 is a deficient number, since it is larger than the sum of its proper divisors (1).

4035641 is an equidigital number, since it uses as much as digits as its factorization.

4035641 is an evil number, because the sum of its binary digits is even.

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

The square root of 4035641 is about 2008.8904897978. The cubic root of 4035641 is about 159.2101831192.

The spelling of 4035641 in words is "four million, thirty-five thousand, six hundred forty-one".