3998540083 has 4 divisors (see below), whose sum is σ = 3998956320. Its totient is φ = 3998123848.

The previous prime is 3998540081. The next prime is 3998540089. The reversal of 3998540083 is 3800458993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3800458993 = 1129 ⋅3366217.

It is a cyclic number.

It is not a de Polignac number, because 3998540083 - 2¹ = 3998540081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3998540081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193360 + ... + 213037.

It is an arithmetic number, because the mean of its divisors is an integer number (999739080).

Almost surely, 2^3998540083 is an apocalyptic number.

3998540083 is a deficient number, since it is larger than the sum of its proper divisors (416237).

3998540083 is an equidigital number, since it uses as much as digits as its factorization.

3998540083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416236.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 3998540083 is about 63234.0104927720. The cubic root of 3998540083 is about 1587.2079056530.

The spelling of 3998540083 in words is "three billion, nine hundred ninety-eight million, five hundred forty thousand, eighty-three".