3993549071 has 2 divisors, whose sum is σ = 3993549072. Its totient is φ = 3993549070.

The previous prime is 3993549061. The next prime is 3993549097. The reversal of 3993549071 is 1709453993.

3993549071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3993549071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3993549031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996774535 + 1996774536.

It is an arithmetic number, because the mean of its divisors is an integer number (1996774536).

Almost surely, 2^3993549071 is an apocalyptic number.

3993549071 is a deficient number, since it is larger than the sum of its proper divisors (1).

3993549071 is an equidigital number, since it uses as much as digits as its factorization.

3993549071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 918540, while the sum is 50.

The square root of 3993549071 is about 63194.5335531484. The cubic root of 3993549071 is about 1586.5472418578.

The spelling of 3993549071 in words is "three billion, nine hundred ninety-three million, five hundred forty-nine thousand, seventy-one".