20048789 has 2 divisors, whose sum is σ = 20048790. Its totient is φ = 20048788.

The previous prime is 20048779. The next prime is 20048807. The reversal of 20048789 is 98784002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18130564 + 1918225 = 4258^2 + 1385^2 .

It is a cyclic number.

It is not a de Polignac number, because 20048789 - 2⁸ = 20048533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20048719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10024394 + 10024395.

It is an arithmetic number, because the mean of its divisors is an integer number (10024395).

Almost surely, 2^20048789 is an apocalyptic number.

It is an amenable number.

20048789 is a deficient number, since it is larger than the sum of its proper divisors (1).

20048789 is an equidigital number, since it uses as much as digits as its factorization.

20048789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 20048789 is about 4477.5874084154. The cubic root of 20048789 is about 271.6623052900.

The spelling of 20048789 in words is "twenty million, forty-eight thousand, seven hundred eighty-nine".