3985984903 has 2 divisors, whose sum is σ = 3985984904. Its totient is φ = 3985984902.

The previous prime is 3985984861. The next prime is 3985984907. The reversal of 3985984903 is 3094895893.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3985984903 - 2⁹ = 3985984391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3985984907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1992992451 + 1992992452.

It is an arithmetic number, because the mean of its divisors is an integer number (1992992452).

Almost surely, 2^3985984903 is an apocalyptic number.

3985984903 is a deficient number, since it is larger than the sum of its proper divisors (1).

3985984903 is an equidigital number, since it uses as much as digits as its factorization.

3985984903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8398080, while the sum is 58.

The square root of 3985984903 is about 63134.6569088642. The cubic root of 3985984903 is about 1585.5449174751.

The spelling of 3985984903 in words is "three billion, nine hundred eighty-five million, nine hundred eighty-four thousand, nine hundred three".