2887971 has 8 divisors (see below), whose sum is σ = 3858624. Its totient is φ = 1921320.

The previous prime is 2887939. The next prime is 2887979. The reversal of 2887971 is 1797882.

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

It is not a de Polignac number, because 2887971 - 2⁵ = 2887939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2887979) 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, 1840 + ... + 3026.

It is an arithmetic number, because the mean of its divisors is an integer number (482328).

2^2887971 is an apocalyptic number.

2887971 is a deficient number, since it is larger than the sum of its proper divisors (970653).

2887971 is a wasteful number, since it uses less digits than its factorization.

2887971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001.

The product of its digits is 56448, while the sum is 42.

The square root of 2887971 is about 1699.4031305138. The cubic root of 2887971 is about 142.4068705129.

The spelling of 2887971 in words is "two million, eight hundred eighty-seven thousand, nine hundred seventy-one".