198600907 has 2 divisors, whose sum is σ = 198600908. Its totient is φ = 198600906.

The previous prime is 198600889. The next prime is 198600947. The reversal of 198600907 is 709006891.

It is an a-pointer prime, because the next prime (198600947) can be obtained adding 198600907 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198600907 is a prime.

It is a super-2 number, since 2×198600907² = 78884640522445298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 198600907.

It is not a weakly prime, because it can be changed into another prime (198600947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99300453 + 99300454.

It is an arithmetic number, because the mean of its divisors is an integer number (99300454).

Almost surely, 2^198600907 is an apocalyptic number.

198600907 is a deficient number, since it is larger than the sum of its proper divisors (1).

198600907 is an equidigital number, since it uses as much as digits as its factorization.

198600907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 198600907 is about 14092.5834040463. The cubic root of 198600907 is about 583.4366978373.

The spelling of 198600907 in words is "one hundred ninety-eight million, six hundred thousand, nine hundred seven".