383609 has 2 divisors, whose sum is σ = 383610. Its totient is φ = 383608.

The previous prime is 383587. The next prime is 383611. The reversal of 383609 is 906383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 354025 + 29584 = 595^2 + 172^2 .

It is an emirp because it is prime and its reverse (906383) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 383609 - 2¹² = 379513 is a prime.

Together with 383611, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (383659) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191804 + 191805.

It is an arithmetic number, because the mean of its divisors is an integer number (191805).

2³⁸³⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

383609 is a deficient number, since it is larger than the sum of its proper divisors (1).

383609 is an equidigital number, since it uses as much as digits as its factorization.

383609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 383609 is about 619.3617682744. The cubic root of 383609 is about 72.6601453995.

The spelling of 383609 in words is "three hundred eighty-three thousand, six hundred nine".