415609 has 2 divisors, whose sum is σ = 415610. Its totient is φ = 415608.

The previous prime is 415607. The next prime is 415627. The reversal of 415609 is 906514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308025 + 107584 = 555^2 + 328^2 .

It is a cyclic number.

It is not a de Polignac number, because 415609 - 2¹ = 415607 is a prime.

Together with 415607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (415603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207804 + 207805.

It is an arithmetic number, because the mean of its divisors is an integer number (207805).

2⁴¹⁵⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

415609 is a deficient number, since it is larger than the sum of its proper divisors (1).

415609 is an equidigital number, since it uses as much as digits as its factorization.

415609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 415609 is about 644.6774387242. The cubic root of 415609 is about 74.6268277944.

It can be divided in two parts, 415 and 609, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 415609 in words is "four hundred fifteen thousand, six hundred nine".