6690701 has 2 divisors, whose sum is σ = 6690702. Its totient is φ = 6690700.

The previous prime is 6690689. The next prime is 6690703. The reversal of 6690701 is 1070966.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6120676 + 570025 = 2474^2 + 755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6690701 is a prime.

Together with 6690703, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6690703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3345350 + 3345351.

It is an arithmetic number, because the mean of its divisors is an integer number (3345351).

Almost surely, 2^6690701 is an apocalyptic number.

It is an amenable number.

6690701 is a deficient number, since it is larger than the sum of its proper divisors (1).

6690701 is an equidigital number, since it uses as much as digits as its factorization.

6690701 is an evil number, because the sum of its binary digits is even.

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

The square root of 6690701 is about 2586.6389388548. The cubic root of 6690701 is about 188.4331062609.

The spelling of 6690701 in words is "six million, six hundred ninety thousand, seven hundred one".