2020392691 has 2 divisors, whose sum is σ = 2020392692. Its totient is φ = 2020392690.

The previous prime is 2020392679. The next prime is 2020392697. The reversal of 2020392691 is 1962930202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2020392691 - 2¹¹ = 2020390643 is a prime.

It is not a weakly prime, because it can be changed into another prime (2020392697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010196345 + 1010196346.

It is an arithmetic number, because the mean of its divisors is an integer number (1010196346).

Almost surely, 2^2020392691 is an apocalyptic number.

2020392691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020392691 is an equidigital number, since it uses as much as digits as its factorization.

2020392691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 2020392691 is about 44948.7785262292. The cubic root of 2020392691 is about 1264.1887743064.

The spelling of 2020392691 in words is "two billion, twenty million, three hundred ninety-two thousand, six hundred ninety-one".