3538943999 has 4 divisors (see below), whose sum is σ = 3539501064. Its totient is φ = 3538386936.

The previous prime is 3538943981. The next prime is 3538944053. The reversal of 3538943999 is 9993498353.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9993498353 = 787 ⋅12698219.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3538943999 is a prime.

It is a super-2 number, since 2×3538943999² = 25048249256116224002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3538943929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268892 + ... + 281745.

It is an arithmetic number, because the mean of its divisors is an integer number (884875266).

Almost surely, 2^3538943999 is an apocalyptic number.

3538943999 is a deficient number, since it is larger than the sum of its proper divisors (557065).

3538943999 is an equidigital number, since it uses as much as digits as its factorization.

3538943999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557064.

The product of its digits is 28343520, while the sum is 62.

The square root of 3538943999 is about 59489.0241893410. The cubic root of 3538943999 is about 1523.9050097459.

The spelling of 3538943999 in words is "three billion, five hundred thirty-eight million, nine hundred forty-three thousand, nine hundred ninety-nine".