2876721 has 8 divisors (see below), whose sum is σ = 3848544. Its totient is φ = 1911360.

The previous prime is 2876717. The next prime is 2876737. The reversal of 2876721 is 1276782.

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

It is not a de Polignac number, because 2876721 - 2² = 2876717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2876761) 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, 456 + ... + 2441.

It is an arithmetic number, because the mean of its divisors is an integer number (481068).

2^2876721 is an apocalyptic number.

It is an amenable number.

2876721 is a deficient number, since it is larger than the sum of its proper divisors (971823).

2876721 is a wasteful number, since it uses less digits than its factorization.

2876721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231.

The product of its digits is 9408, while the sum is 33.

The square root of 2876721 is about 1696.0899150694. The cubic root of 2876721 is about 142.2217160581.

The spelling of 2876721 in words is "two million, eight hundred seventy-six thousand, seven hundred twenty-one".