2009361 has 4 divisors (see below), whose sum is σ = 2679152. Its totient is φ = 1339572.

The previous prime is 2009339. The next prime is 2009377. The reversal of 2009361 is 1639002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2009361 - 2⁷ = 2009233 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2009311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334891 + ... + 334896.

It is an arithmetic number, because the mean of its divisors is an integer number (669788).

2^2009361 is an apocalyptic number.

It is an amenable number.

2009361 is a deficient number, since it is larger than the sum of its proper divisors (669791).

2009361 is an equidigital number, since it uses as much as digits as its factorization.

2009361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669790.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 2009361 is about 1417.5193120378. The cubic root of 2009361 is about 126.1883677870.

The spelling of 2009361 in words is "two million, nine thousand, three hundred sixty-one".