2876861 has 8 divisors (see below), whose sum is σ = 3182424. Its totient is φ = 2583360.

The previous prime is 2876833. The next prime is 2876869. The reversal of 2876861 is 1686782.

It can be written as a sum of positive squares in 4 ways, for example, as 37636 + 2839225 = 194^2 + 1685^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2876861 - 2¹⁴ = 2860477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2876869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2510 + ... + 3471.

It is an arithmetic number, because the mean of its divisors is an integer number (397803).

2^2876861 is an apocalyptic number.

It is an amenable number.

2876861 is a deficient number, since it is larger than the sum of its proper divisors (305563).

2876861 is a wasteful number, since it uses less digits than its factorization.

2876861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6031.

The product of its digits is 32256, while the sum is 38.

The square root of 2876861 is about 1696.1311859641. The cubic root of 2876861 is about 142.2240231660.

The spelling of 2876861 in words is "two million, eight hundred seventy-six thousand, eight hundred sixty-one".