198327401 has 2 divisors, whose sum is σ = 198327402. Its totient is φ = 198327400.

The previous prime is 198327397. The next prime is 198327419. The reversal of 198327401 is 104723891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192543376 + 5784025 = 13876^2 + 2405^2 .

It is an emirp because it is prime and its reverse (104723891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198327401 - 2² = 198327397 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (198327001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99163700 + 99163701.

It is an arithmetic number, because the mean of its divisors is an integer number (99163701).

Almost surely, 2^198327401 is an apocalyptic number.

It is an amenable number.

198327401 is a deficient number, since it is larger than the sum of its proper divisors (1).

198327401 is an equidigital number, since it uses as much as digits as its factorization.

198327401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 198327401 is about 14082.8761622049. The cubic root of 198327401 is about 583.1687454751.

The spelling of 198327401 in words is "one hundred ninety-eight million, three hundred twenty-seven thousand, four hundred one".