3989327873 has 2 divisors, whose sum is σ = 3989327874. Its totient is φ = 3989327872.

The previous prime is 3989327833. The next prime is 3989327879. The reversal of 3989327873 is 3787239893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3575083264 + 414244609 = 59792^2 + 20353^2 .

It is a cyclic number.

It is not a de Polignac number, because 3989327873 - 2²⁰ = 3988279297 is a prime.

It is not a weakly prime, because it can be changed into another prime (3989327879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994663936 + 1994663937.

It is an arithmetic number, because the mean of its divisors is an integer number (1994663937).

Almost surely, 2^3989327873 is an apocalyptic number.

It is an amenable number.

3989327873 is a deficient number, since it is larger than the sum of its proper divisors (1).

3989327873 is an equidigital number, since it uses as much as digits as its factorization.

3989327873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 59.

The square root of 3989327873 is about 63161.1262803316. The cubic root of 3989327873 is about 1585.9880491078.

The spelling of 3989327873 in words is "three billion, nine hundred eighty-nine million, three hundred twenty-seven thousand, eight hundred seventy-three".