2009577 has 4 divisors (see below), whose sum is σ = 2679440. Its totient is φ = 1339716.

The previous prime is 2009543. The next prime is 2009593. The reversal of 2009577 is 7759002.

It is a happy number.

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 2009577 - 2⁸ = 2009321 is a prime.

It is a D-number.

It is a Duffinian number.

2009577 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2009537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334927 + ... + 334932.

It is an arithmetic number, because the mean of its divisors is an integer number (669860).

2^2009577 is an apocalyptic number.

It is an amenable number.

2009577 is a deficient number, since it is larger than the sum of its proper divisors (669863).

2009577 is an equidigital number, since it uses as much as digits as its factorization.

2009577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669862.

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 2009577 is about 1417.5954994285. The cubic root of 2009577 is about 126.1928892428.

The spelling of 2009577 in words is "two million, nine thousand, five hundred seventy-seven".