198923207 has 8 divisors (see below), whose sum is σ = 227534496. Its totient is φ = 170360352.

The previous prime is 198923191. The next prime is 198923213. The reversal of 198923207 is 702329891.

It is a happy number.

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 198923207 - 2⁴ = 198923191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198923287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2828 + ... + 20145.

It is an arithmetic number, because the mean of its divisors is an integer number (28441812).

Almost surely, 2^198923207 is an apocalyptic number.

198923207 is a deficient number, since it is larger than the sum of its proper divisors (28611289).

198923207 is a wasteful number, since it uses less digits than its factorization.

198923207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24217.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 198923207 is about 14104.0138613091. The cubic root of 198923207 is about 583.7521378503.

The spelling of 198923207 in words is "one hundred ninety-eight million, nine hundred twenty-three thousand, two hundred seven".