2876509 has 2 divisors, whose sum is σ = 2876510. Its totient is φ = 2876508.

The previous prime is 2876507. The next prime is 2876513. The reversal of 2876509 is 9056782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1633284 + 1243225 = 1278^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 2876509 - 2¹ = 2876507 is a prime.

It is a super-3 number, since 3×2876509³ = 71403330007904220687, which contains 333 as substring.

Together with 2876507, it forms a pair of twin primes.

2876509 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2876507) 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 as a sum of consecutive naturals, namely, 1438254 + 1438255.

It is an arithmetic number, because the mean of its divisors is an integer number (1438255).

2^2876509 is an apocalyptic number.

It is an amenable number.

2876509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2876509 is an equidigital number, since it uses as much as digits as its factorization.

2876509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 2876509 is about 1696.0274172312. The cubic root of 2876509 is about 142.2182222951.

The spelling of 2876509 in words is "two million, eight hundred seventy-six thousand, five hundred nine".