6936641 has 2 divisors, whose sum is σ = 6936642. Its totient is φ = 6936640.

The previous prime is 6936637. The next prime is 6936659. The reversal of 6936641 is 1466396.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4060225 + 2876416 = 2015^2 + 1696^2 .

It is a cyclic number.

It is not a de Polignac number, because 6936641 - 2² = 6936637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6936661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3468320 + 3468321.

It is an arithmetic number, because the mean of its divisors is an integer number (3468321).

Almost surely, 2^6936641 is an apocalyptic number.

It is an amenable number.

6936641 is a deficient number, since it is larger than the sum of its proper divisors (1).

6936641 is an equidigital number, since it uses as much as digits as its factorization.

6936641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 35.

The square root of 6936641 is about 2633.7503678215. The cubic root of 6936641 is about 190.7142185964.

The spelling of 6936641 in words is "six million, nine hundred thirty-six thousand, six hundred forty-one".