198022807 has 8 divisors (see below), whose sum is σ = 210359600. Its totient is φ = 185877504.

The previous prime is 198022757. The next prime is 198022813. The reversal of 198022807 is 708220891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 198022807 - 2⁷ = 198022679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198022007) 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 in 7 ways as a sum of consecutive naturals, for example, 45738 + ... + 49879.

It is an arithmetic number, because the mean of its divisors is an integer number (26294950).

Almost surely, 2^198022807 is an apocalyptic number.

198022807 is a deficient number, since it is larger than the sum of its proper divisors (12336793).

198022807 is a wasteful number, since it uses less digits than its factorization.

198022807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95745.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 198022807 is about 14072.0576675908. The cubic root of 198022807 is about 582.8700462652.

The spelling of 198022807 in words is "one hundred ninety-eight million, twenty-two thousand, eight hundred seven".