4211609 has 2 divisors, whose sum is σ = 4211610. Its totient is φ = 4211608.

The previous prime is 4211593. The next prime is 4211633. The reversal of 4211609 is 9061124.

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., 4182025 + 29584 = 2045^2 + 172^2 .

It is a cyclic number.

It is not a de Polignac number, because 4211609 - 2⁴ = 4211593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4211639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2105804 + 2105805.

It is an arithmetic number, because the mean of its divisors is an integer number (2105805).

Almost surely, 2^4211609 is an apocalyptic number.

It is an amenable number.

4211609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4211609 is an equidigital number, since it uses as much as digits as its factorization.

4211609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 4211609 is about 2052.2205047217. The cubic root of 4211609 is about 161.4913809712.

It can be divided in two parts, 42 and 11609, that multiplied together give a triangular number (487578 = T₉₈₇).

The spelling of 4211609 in words is "four million, two hundred eleven thousand, six hundred nine".