3066991 has 2 divisors, whose sum is σ = 3066992. Its totient is φ = 3066990.

The previous prime is 3066989. The next prime is 3067003. The reversal of 3066991 is 1996603.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3066991 - 2¹ = 3066989 is a prime.

Together with 3066989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3066901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1533495 + 1533496.

It is an arithmetic number, because the mean of its divisors is an integer number (1533496).

Almost surely, 2^3066991 is an apocalyptic number.

3066991 is a deficient number, since it is larger than the sum of its proper divisors (1).

3066991 is an equidigital number, since it uses as much as digits as its factorization.

3066991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 3066991 is about 1751.2826727859. The cubic root of 3066991 is about 145.2905944009.

The spelling of 3066991 in words is "three million, sixty-six thousand, nine hundred ninety-one".