4070861 has 2 divisors, whose sum is σ = 4070862. Its totient is φ = 4070860.

The previous prime is 4070831. The next prime is 4070867. The reversal of 4070861 is 1680704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3204100 + 866761 = 1790^2 + 931^2 .

It is a cyclic number.

It is not a de Polignac number, because 4070861 - 2⁶ = 4070797 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4070861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4070867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2035430 + 2035431.

It is an arithmetic number, because the mean of its divisors is an integer number (2035431).

Almost surely, 2^4070861 is an apocalyptic number.

It is an amenable number.

4070861 is a deficient number, since it is larger than the sum of its proper divisors (1).

4070861 is an equidigital number, since it uses as much as digits as its factorization.

4070861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 4070861 is about 2017.6374798263. The cubic root of 4070861 is about 159.6719973193.

The spelling of 4070861 in words is "four million, seventy thousand, eight hundred sixty-one".