20758079 has 2 divisors, whose sum is σ = 20758080. Its totient is φ = 20758078.

The previous prime is 20758063. The next prime is 20758091. The reversal of 20758079 is 97085702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20758079 - 2⁴ = 20758063 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20758579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10379039 + 10379040.

It is an arithmetic number, because the mean of its divisors is an integer number (10379040).

Almost surely, 2^20758079 is an apocalyptic number.

20758079 is a deficient number, since it is larger than the sum of its proper divisors (1).

20758079 is an equidigital number, since it uses as much as digits as its factorization.

20758079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 20758079 is about 4556.1034887281. The cubic root of 20758079 is about 274.8288919038.

The spelling of 20758079 in words is "twenty million, seven hundred fifty-eight thousand, seventy-nine".