3920080639 has 2 divisors, whose sum is σ = 3920080640. Its totient is φ = 3920080638.

The previous prime is 3920080573. The next prime is 3920080657. The reversal of 3920080639 is 9360800293.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3920080639 - 2⁷ = 3920080511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3920080139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1960040319 + 1960040320.

It is an arithmetic number, because the mean of its divisors is an integer number (1960040320).

Almost surely, 2^3920080639 is an apocalyptic number.

3920080639 is a deficient number, since it is larger than the sum of its proper divisors (1).

3920080639 is an equidigital number, since it uses as much as digits as its factorization.

3920080639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 3920080639 is about 62610.5473462739. The cubic root of 3920080639 is about 1576.7578443925.

The spelling of 3920080639 in words is "three billion, nine hundred twenty million, eighty thousand, six hundred thirty-nine".