9800503901 has 2 divisors, whose sum is σ = 9800503902. Its totient is φ = 9800503900.

The previous prime is 9800503807. The next prime is 9800503903. The reversal of 9800503901 is 1093050089.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9609096676 + 191407225 = 98026^2 + 13835^2 .

It is an emirp because it is prime and its reverse (1093050089) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9800503901 is a prime.

Together with 9800503903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9800503903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4900251950 + 4900251951.

It is an arithmetic number, because the mean of its divisors is an integer number (4900251951).

Almost surely, 2^9800503901 is an apocalyptic number.

It is an amenable number.

9800503901 is a deficient number, since it is larger than the sum of its proper divisors (1).

9800503901 is an equidigital number, since it uses as much as digits as its factorization.

9800503901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 9800503901 is about 98997.4944177882. The cubic root of 9800503901 is about 2140.0116385805.

The spelling of 9800503901 in words is "nine billion, eight hundred million, five hundred three thousand, nine hundred one".