2971305 has 12 divisors (see below), whose sum is σ = 5150340. Its totient is φ = 1584672.

The previous prime is 2971273. The next prime is 2971307. The reversal of 2971305 is 5031792.

It can be written as a sum of positive squares in 2 ways, for example, as 385641 + 2585664 = 621^2 + 1608^2 .

It is not a de Polignac number, because 2971305 - 2⁵ = 2971273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2971307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32970 + ... + 33059.

It is an arithmetic number, because the mean of its divisors is an integer number (429195).

2^2971305 is an apocalyptic number.

It is an amenable number.

2971305 is a deficient number, since it is larger than the sum of its proper divisors (2179035).

2971305 is a wasteful number, since it uses less digits than its factorization.

2971305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66040 (or 66037 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 2971305 is about 1723.7473712815. The cubic root of 2971305 is about 143.7636458375.

The spelling of 2971305 in words is "two million, nine hundred seventy-one thousand, three hundred five".