20479363 has 2 divisors, whose sum is σ = 20479364. Its totient is φ = 20479362.

The previous prime is 20479343. The next prime is 20479367. The reversal of 20479363 is 36397402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20479363 - 2⁵ = 20479331 is a prime.

It is not a weakly prime, because it can be changed into another prime (20479367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10239681 + 10239682.

It is an arithmetic number, because the mean of its divisors is an integer number (10239682).

Almost surely, 2^20479363 is an apocalyptic number.

20479363 is a deficient number, since it is larger than the sum of its proper divisors (1).

20479363 is an equidigital number, since it uses as much as digits as its factorization.

20479363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 20479363 is about 4525.4130198248. The cubic root of 20479363 is about 273.5933148381.

The spelling of 20479363 in words is "twenty million, four hundred seventy-nine thousand, three hundred sixty-three".