3943350091 has 2 divisors, whose sum is σ = 3943350092. Its totient is φ = 3943350090.

The previous prime is 3943350053. The next prime is 3943350101. The reversal of 3943350091 is 1900533493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3943350091 - 2¹¹ = 3943348043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3943350091.

It is not a weakly prime, because it can be changed into another prime (3943350031) 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, 1971675045 + 1971675046.

It is an arithmetic number, because the mean of its divisors is an integer number (1971675046).

Almost surely, 2^3943350091 is an apocalyptic number.

3943350091 is a deficient number, since it is larger than the sum of its proper divisors (1).

3943350091 is an equidigital number, since it uses as much as digits as its factorization.

3943350091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43740, while the sum is 37.

The square root of 3943350091 is about 62796.0993294966. The cubic root of 3943350091 is about 1579.8715500714.

The spelling of 3943350091 in words is "three billion, nine hundred forty-three million, three hundred fifty thousand, ninety-one".