2971239 has 8 divisors (see below), whose sum is σ = 4170240. Its totient is φ = 1876536.

The previous prime is 2971223. The next prime is 2971247. The reversal of 2971239 is 9321792.

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

It is not a de Polignac number, because 2971239 - 2⁴ = 2971223 is a prime.

It is a super-2 number, since 2×2971239² = 17656522390242, which contains 22 as substring.

2971239 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2971259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26007 + ... + 26120.

It is an arithmetic number, because the mean of its divisors is an integer number (521280).

2^2971239 is an apocalyptic number.

2971239 is a deficient number, since it is larger than the sum of its proper divisors (1199001).

2971239 is a wasteful number, since it uses less digits than its factorization.

2971239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52149.

The product of its digits is 6804, while the sum is 33.

The square root of 2971239 is about 1723.7282268386. The cubic root of 2971239 is about 143.7625813815.

The spelling of 2971239 in words is "two million, nine hundred seventy-one thousand, two hundred thirty-nine".