20795791 has 2 divisors, whose sum is σ = 20795792. Its totient is φ = 20795790.

The previous prime is 20795779. The next prime is 20795807. The reversal of 20795791 is 19759702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20795791 - 2⁵ = 20795759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20795491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10397895 + 10397896.

It is an arithmetic number, because the mean of its divisors is an integer number (10397896).

Almost surely, 2^20795791 is an apocalyptic number.

20795791 is a deficient number, since it is larger than the sum of its proper divisors (1).

20795791 is an equidigital number, since it uses as much as digits as its factorization.

20795791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39690, while the sum is 40.

The square root of 20795791 is about 4560.2402348999. The cubic root of 20795791 is about 274.9952219556.

The spelling of 20795791 in words is "twenty million, seven hundred ninety-five thousand, seven hundred ninety-one".