3993061543 has 2 divisors, whose sum is σ = 3993061544. Its totient is φ = 3993061542.

The previous prime is 3993061481. The next prime is 3993061559. The reversal of 3993061543 is 3451603993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3993061543 - 2²¹ = 3990964391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3993061543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3993061343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996530771 + 1996530772.

It is an arithmetic number, because the mean of its divisors is an integer number (1996530772).

Almost surely, 2^3993061543 is an apocalyptic number.

3993061543 is a deficient number, since it is larger than the sum of its proper divisors (1).

3993061543 is an equidigital number, since it uses as much as digits as its factorization.

3993061543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440, while the sum is 43.

The square root of 3993061543 is about 63190.6760764593. The cubic root of 3993061543 is about 1586.4826779267.

The spelling of 3993061543 in words is "three billion, nine hundred ninety-three million, sixty-one thousand, five hundred forty-three".