198600947 has 2 divisors, whose sum is σ = 198600948. Its totient is φ = 198600946.

The previous prime is 198600907. The next prime is 198600979. The reversal of 198600947 is 749006891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198600947 - 2¹⁰ = 198599923 is a prime.

It is a super-2 number, since 2×198600947² = 78884672298593618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 198600898 and 198600907.

It is not a weakly prime, because it can be changed into another prime (198600907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99300473 + 99300474.

It is an arithmetic number, because the mean of its divisors is an integer number (99300474).

Almost surely, 2^198600947 is an apocalyptic number.

198600947 is a deficient number, since it is larger than the sum of its proper divisors (1).

198600947 is an equidigital number, since it uses as much as digits as its factorization.

198600947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 198600947 is about 14092.5848232324. The cubic root of 198600947 is about 583.4367370071.

The spelling of 198600947 in words is "one hundred ninety-eight million, six hundred thousand, nine hundred forty-seven".