20703079 has 2 divisors, whose sum is σ = 20703080. Its totient is φ = 20703078.

The previous prime is 20703031. The next prime is 20703101. The reversal of 20703079 is 97030702.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20703079 - 2¹⁵ = 20670311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20703379) 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, 10351539 + 10351540.

It is an arithmetic number, because the mean of its divisors is an integer number (10351540).

Almost surely, 2^20703079 is an apocalyptic number.

20703079 is a deficient number, since it is larger than the sum of its proper divisors (1).

20703079 is an equidigital number, since it uses as much as digits as its factorization.

20703079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 20703079 is about 4550.0636259288. The cubic root of 20703079 is about 274.5859510119.

The spelling of 20703079 in words is "twenty million, seven hundred three thousand, seventy-nine".