9800196823 has 2 divisors, whose sum is σ = 9800196824. Its totient is φ = 9800196822.

The previous prime is 9800196803. The next prime is 9800196871. The reversal of 9800196823 is 3286910089.

It is a weak prime.

It is an emirp because it is prime and its reverse (3286910089) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9800196823 - 2²¹ = 9798099671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9800196803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4900098411 + 4900098412.

It is an arithmetic number, because the mean of its divisors is an integer number (4900098412).

Almost surely, 2^9800196823 is an apocalyptic number.

9800196823 is a deficient number, since it is larger than the sum of its proper divisors (1).

9800196823 is an equidigital number, since it uses as much as digits as its factorization.

9800196823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 9800196823 is about 98995.9434673967. The cubic root of 9800196823 is about 2139.9892874387.

The spelling of 9800196823 in words is "nine billion, eight hundred million, one hundred ninety-six thousand, eight hundred twenty-three".