20298601 has 2 divisors, whose sum is σ = 20298602. Its totient is φ = 20298600.

The previous prime is 20298571. The next prime is 20298611. The reversal of 20298601 is 10689202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20241001 + 57600 = 4499^2 + 240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20298601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20298601.

It is not a weakly prime, because it can be changed into another prime (20298611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10149300 + 10149301.

It is an arithmetic number, because the mean of its divisors is an integer number (10149301).

Almost surely, 2^20298601 is an apocalyptic number.

It is an amenable number.

20298601 is a deficient number, since it is larger than the sum of its proper divisors (1).

20298601 is an equidigital number, since it uses as much as digits as its factorization.

20298601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 20298601 is about 4505.3968748602. The cubic root of 20298601 is about 272.7859736642.

The spelling of 20298601 in words is "twenty million, two hundred ninety-eight thousand, six hundred one".