2897871 has 8 divisors (see below), whose sum is σ = 4091184. Its totient is φ = 1818240.

The previous prime is 2897833. The next prime is 2897887. The reversal of 2897871 is 1787982.

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

It is not a de Polignac number, because 2897871 - 2¹⁰ = 2896847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897801) 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, 28360 + ... + 28461.

It is an arithmetic number, because the mean of its divisors is an integer number (511398).

2^2897871 is an apocalyptic number.

2897871 is a deficient number, since it is larger than the sum of its proper divisors (1193313).

2897871 is a wasteful number, since it uses less digits than its factorization.

2897871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56841.

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

The square root of 2897871 is about 1702.3134259002. The cubic root of 2897871 is about 142.5694090921.

The spelling of 2897871 in words is "two million, eight hundred ninety-seven thousand, eight hundred seventy-one".