2509347 has 4 divisors (see below), whose sum is σ = 3345800. Its totient is φ = 1672896.

The previous prime is 2509337. The next prime is 2509363. The reversal of 2509347 is 7439052.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2509347 - 2⁷ = 2509219 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 (2509307) 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, 418222 + ... + 418227.

It is an arithmetic number, because the mean of its divisors is an integer number (836450).

2^2509347 is an apocalyptic number.

2509347 is a deficient number, since it is larger than the sum of its proper divisors (836453).

2509347 is an equidigital number, since it uses as much as digits as its factorization.

2509347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836452.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 2509347 is about 1584.0918533974. The cubic root of 2509347 is about 135.8898148772.

The spelling of 2509347 in words is "two million, five hundred nine thousand, three hundred forty-seven".