6700691 has 2 divisors, whose sum is σ = 6700692. Its totient is φ = 6700690.

The previous prime is 6700657. The next prime is 6700693. The reversal of 6700691 is 1960076.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6700691 - 2¹⁸ = 6438547 is a prime.

Together with 6700693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6700693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3350345 + 3350346.

It is an arithmetic number, because the mean of its divisors is an integer number (3350346).

Almost surely, 2^6700691 is an apocalyptic number.

6700691 is a deficient number, since it is larger than the sum of its proper divisors (1).

6700691 is an equidigital number, since it uses as much as digits as its factorization.

6700691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 6700691 is about 2588.5692959625. The cubic root of 6700691 is about 188.5268438530.

The spelling of 6700691 in words is "six million, seven hundred thousand, six hundred ninety-one".