6961813 has 2 divisors, whose sum is σ = 6961814. Its totient is φ = 6961812.

The previous prime is 6961777. The next prime is 6961849. The reversal of 6961813 is 3181696.

6961813 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (6961777) and next prime (6961849).

It can be written as a sum of positive squares in only one way, i.e., 4765489 + 2196324 = 2183^2 + 1482^2 .

It is a cyclic number.

It is not a de Polignac number, because 6961813 - 2¹³ = 6953621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6961853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3480906 + 3480907.

It is an arithmetic number, because the mean of its divisors is an integer number (3480907).

Almost surely, 2^6961813 is an apocalyptic number.

It is an amenable number.

6961813 is a deficient number, since it is larger than the sum of its proper divisors (1).

6961813 is an equidigital number, since it uses as much as digits as its factorization.

6961813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 34.

The square root of 6961813 is about 2638.5247772193. The cubic root of 6961813 is about 190.9446309358.

The spelling of 6961813 in words is "six million, nine hundred sixty-one thousand, eight hundred thirteen".