6709961 has 2 divisors, whose sum is σ = 6709962. Its totient is φ = 6709960.

The previous prime is 6709957. The next prime is 6709973. The reversal of 6709961 is 1699076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6661561 + 48400 = 2581^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 6709961 - 2² = 6709957 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6709921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3354980 + 3354981.

It is an arithmetic number, because the mean of its divisors is an integer number (3354981).

Almost surely, 2^6709961 is an apocalyptic number.

It is an amenable number.

6709961 is a deficient number, since it is larger than the sum of its proper divisors (1).

6709961 is an equidigital number, since it uses as much as digits as its factorization.

6709961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 6709961 is about 2590.3592414953. The cubic root of 6709961 is about 188.6137422809.

The spelling of 6709961 in words is "six million, seven hundred nine thousand, nine hundred sixty-one".