198377723 has 2 divisors, whose sum is σ = 198377724. Its totient is φ = 198377722.

The previous prime is 198377677. The next prime is 198377747. The reversal of 198377723 is 327773891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198377723 - 2⁸ = 198377467 is a prime.

It is not a weakly prime, because it can be changed into another prime (198377923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99188861 + 99188862.

It is an arithmetic number, because the mean of its divisors is an integer number (99188862).

Almost surely, 2^198377723 is an apocalyptic number.

198377723 is a deficient number, since it is larger than the sum of its proper divisors (1).

198377723 is an equidigital number, since it uses as much as digits as its factorization.

198377723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 47.

The square root of 198377723 is about 14084.6626867668. The cubic root of 198377723 is about 583.2180641535.

The spelling of 198377723 in words is "one hundred ninety-eight million, three hundred seventy-seven thousand, seven hundred twenty-three".