2876309 has 4 divisors (see below), whose sum is σ = 2925120. Its totient is φ = 2827500.

The previous prime is 2876303. The next prime is 2876329. The reversal of 2876309 is 9036782.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9036782 = 2 ⋅4518391.

It is a cyclic number.

It is not a de Polignac number, because 2876309 - 2²⁰ = 1827733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2876303) 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, 24317 + ... + 24434.

It is an arithmetic number, because the mean of its divisors is an integer number (731280).

2^2876309 is an apocalyptic number.

It is an amenable number.

2876309 is a deficient number, since it is larger than the sum of its proper divisors (48811).

2876309 is an equidigital number, since it uses as much as digits as its factorization.

2876309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48810.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2876309 is about 1695.9684548953. The cubic root of 2876309 is about 142.2149261349.

The spelling of 2876309 in words is "two million, eight hundred seventy-six thousand, three hundred nine".