3966920761 has 2 divisors, whose sum is σ = 3966920762. Its totient is φ = 3966920760.

The previous prime is 3966920723. The next prime is 3966920807. The reversal of 3966920761 is 1670296693.

3966920761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2130284025 + 1836636736 = 46155^2 + 42856^2 .

It is a cyclic number.

It is not a de Polignac number, because 3966920761 - 2¹¹ = 3966918713 is a prime.

It is not a weakly prime, because it can be changed into another prime (3966920161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1983460380 + 1983460381.

It is an arithmetic number, because the mean of its divisors is an integer number (1983460381).

Almost surely, 2^3966920761 is an apocalyptic number.

It is an amenable number.

3966920761 is a deficient number, since it is larger than the sum of its proper divisors (1).

3966920761 is an equidigital number, since it uses as much as digits as its factorization.

3966920761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 49.

The square root of 3966920761 is about 62983.4959413972. The cubic root of 3966920761 is about 1583.0130989022.

The spelling of 3966920761 in words is "three billion, nine hundred sixty-six million, nine hundred twenty thousand, seven hundred sixty-one".