3920720033 has 2 divisors, whose sum is σ = 3920720034. Its totient is φ = 3920720032.

The previous prime is 3920719987. The next prime is 3920720107. The reversal of 3920720033 is 3300270293.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2477251984 + 1443468049 = 49772^2 + 37993^2 .

It is a cyclic number.

It is not a de Polignac number, because 3920720033 - 2¹⁰ = 3920719009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3920719978 and 3920720005.

It is not a weakly prime, because it can be changed into another prime (3920720833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1960360016 + 1960360017.

It is an arithmetic number, because the mean of its divisors is an integer number (1960360017).

Almost surely, 2^3920720033 is an apocalyptic number.

It is an amenable number.

3920720033 is a deficient number, since it is larger than the sum of its proper divisors (1).

3920720033 is an equidigital number, since it uses as much as digits as its factorization.

3920720033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 3920720033 is about 62615.6532585902. The cubic root of 3920720033 is about 1576.8435666679.

The spelling of 3920720033 in words is "three billion, nine hundred twenty million, seven hundred twenty thousand, thirty-three".