2973171 has 4 divisors (see below), whose sum is σ = 3964232. Its totient is φ = 1982112.

The previous prime is 2973163. The next prime is 2973199. The reversal of 2973171 is 1713792.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2973171 - 2³ = 2973163 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2973121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495526 + ... + 495531.

It is an arithmetic number, because the mean of its divisors is an integer number (991058).

2^2973171 is an apocalyptic number.

2973171 is a deficient number, since it is larger than the sum of its proper divisors (991061).

2973171 is an equidigital number, since it uses as much as digits as its factorization.

2973171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991060.

The product of its digits is 2646, while the sum is 30.

The square root of 2973171 is about 1724.2885489384. The cubic root of 2973171 is about 143.7937343930.

Subtracting from 2973171 its sum of digits (30), we obtain a triangular number (2973141 = T₂₄₃₈).

The spelling of 2973171 in words is "two million, nine hundred seventy-three thousand, one hundred seventy-one".