2972943 has 30 divisors (see below), whose sum is σ = 4754816. Its totient is φ = 1850688.

The previous prime is 2972939. The next prime is 2972947. The reversal of 2972943 is 3492792.

It is an interprime number because it is at equal distance from previous prime (2972939) and next prime (2972947).

It is not a de Polignac number, because 2972943 - 2² = 2972939 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 2972898 and 2972907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2972947) 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 29 ways as a sum of consecutive naturals, for example, 23346 + ... + 23472.

2^2972943 is an apocalyptic number.

2972943 is a deficient number, since it is larger than the sum of its proper divisors (1781873).

2972943 is a wasteful number, since it uses less digits than its factorization.

2972943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 147 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 2972943 is about 1724.2224334465. Note that the first 3 decimals coincide. The cubic root of 2972943 is about 143.7900586531.

It can be divided in two parts, 297 and 2943, that added together give a triangular number (3240 = T₈₀).

The spelling of 2972943 in words is "two million, nine hundred seventy-two thousand, nine hundred forty-three".