2788971 has 8 divisors (see below), whose sum is σ = 3729360. Its totient is φ = 1853952.

The previous prime is 2788939. The next prime is 2788979. The reversal of 2788971 is 1798872.

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

It is not a de Polignac number, because 2788971 - 2⁵ = 2788939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2788979) 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, 91 + ... + 2363.

It is an arithmetic number, because the mean of its divisors is an integer number (466170).

2^2788971 is an apocalyptic number.

2788971 is a deficient number, since it is larger than the sum of its proper divisors (940389).

2788971 is a wasteful number, since it uses less digits than its factorization.

2788971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685.

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

The square root of 2788971 is about 1670.0212573497. The cubic root of 2788971 is about 140.7606724217.

Subtracting from 2788971 its reverse (1798872), we obtain a palindrome (990099).

The spelling of 2788971 in words is "two million, seven hundred eighty-eight thousand, nine hundred seventy-one".