3307993691 has 2 divisors, whose sum is σ = 3307993692. Its totient is φ = 3307993690.

The previous prime is 3307993679. The next prime is 3307993729. The reversal of 3307993691 is 1963997033.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3307993691 is a prime.

It is not a weakly prime, because it can be changed into another prime (3307993631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1653996845 + 1653996846.

It is an arithmetic number, because the mean of its divisors is an integer number (1653996846).

Almost surely, 2^3307993691 is an apocalyptic number.

3307993691 is a deficient number, since it is larger than the sum of its proper divisors (1).

3307993691 is an equidigital number, since it uses as much as digits as its factorization.

3307993691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 826686, while the sum is 50.

The square root of 3307993691 is about 57515.1605318111. The cubic root of 3307993691 is about 1490.0067100279.

The spelling of 3307993691 in words is "three billion, three hundred seven million, nine hundred ninety-three thousand, six hundred ninety-one".