20448007 has 2 divisors, whose sum is σ = 20448008. Its totient is φ = 20448006.

The previous prime is 20447969. The next prime is 20448019. The reversal of 20448007 is 70084402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20448007 - 2¹⁹ = 19923719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20448037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10224003 + 10224004.

It is an arithmetic number, because the mean of its divisors is an integer number (10224004).

Almost surely, 2^20448007 is an apocalyptic number.

20448007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20448007 is an equidigital number, since it uses as much as digits as its factorization.

20448007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 20448007 is about 4521.9472575429. The cubic root of 20448007 is about 273.4536103945.

The spelling of 20448007 in words is "twenty million, four hundred forty-eight thousand, seven".