7040861 has 2 divisors, whose sum is σ = 7040862. Its totient is φ = 7040860.

The previous prime is 7040843. The next prime is 7040867. The reversal of 7040861 is 1680407.

7040861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6002500 + 1038361 = 2450^2 + 1019^2 .

It is an emirp because it is prime and its reverse (1680407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7040861 - 2⁶ = 7040797 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7040861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7040867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3520430 + 3520431.

It is an arithmetic number, because the mean of its divisors is an integer number (3520431).

Almost surely, 2^7040861 is an apocalyptic number.

It is an amenable number.

7040861 is a deficient number, since it is larger than the sum of its proper divisors (1).

7040861 is an equidigital number, since it uses as much as digits as its factorization.

7040861 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 7040861 is about 2653.4620781161. The cubic root of 7040861 is about 191.6646072453.

The spelling of 7040861 in words is "seven million, forty thousand, eight hundred sixty-one".