2971889 has 8 divisors (see below), whose sum is σ = 3201120. Its totient is φ = 2748736.

The previous prime is 2971883. The next prime is 2971897. The reversal of 2971889 is 9881792.

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

It is a cyclic number.

It is not a de Polignac number, because 2971889 - 2⁴ = 2971873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2971883) 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, 479 + ... + 2484.

It is an arithmetic number, because the mean of its divisors is an integer number (400140).

2^2971889 is an apocalyptic number.

It is an amenable number.

2971889 is a deficient number, since it is larger than the sum of its proper divisors (229231).

2971889 is a wasteful number, since it uses less digits than its factorization.

2971889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039.

The product of its digits is 72576, while the sum is 44.

The square root of 2971889 is about 1723.9167613316. The cubic root of 2971889 is about 143.7730639742.

Subtracting 2971889 from its reverse (9881792), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2971889 in words is "two million, nine hundred seventy-one thousand, eight hundred eighty-nine".