6435601 has 2 divisors, whose sum is σ = 6435602. Its totient is φ = 6435600.

The previous prime is 6435599. The next prime is 6435613. The reversal of 6435601 is 1065346.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6370576 + 65025 = 2524^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 6435601 - 2¹ = 6435599 is a prime.

Together with 6435599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6435691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3217800 + 3217801.

It is an arithmetic number, because the mean of its divisors is an integer number (3217801).

Almost surely, 2^6435601 is an apocalyptic number.

It is an amenable number.

6435601 is a deficient number, since it is larger than the sum of its proper divisors (1).

6435601 is an equidigital number, since it uses as much as digits as its factorization.

6435601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 6435601 is about 2536.8486356107. The cubic root of 6435601 is about 186.0071778168.

The spelling of 6435601 in words is "six million, four hundred thirty-five thousand, six hundred one".