198377449 has 2 divisors, whose sum is σ = 198377450. Its totient is φ = 198377448.

The previous prime is 198377441. The next prime is 198377467. The reversal of 198377449 is 944773891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195021225 + 3356224 = 13965^2 + 1832^2 .

It is a cyclic number.

It is not a de Polignac number, because 198377449 - 2³ = 198377441 is a prime.

It is a super-2 number, since 2×198377449² = 78707224543495202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 198377396 and 198377405.

It is not a weakly prime, because it can be changed into another prime (198377441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99188724 + 99188725.

It is an arithmetic number, because the mean of its divisors is an integer number (99188725).

Almost surely, 2^198377449 is an apocalyptic number.

It is an amenable number.

198377449 is a deficient number, since it is larger than the sum of its proper divisors (1).

198377449 is an equidigital number, since it uses as much as digits as its factorization.

198377449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 52.

The square root of 198377449 is about 14084.6529598709. The cubic root of 198377449 is about 583.2177956391.

The spelling of 198377449 in words is "one hundred ninety-eight million, three hundred seventy-seven thousand, four hundred forty-nine".