198716755 has 8 divisors (see below), whose sum is σ = 240040224. Its totient is φ = 157920000.

The previous prime is 198716747. The next prime is 198716809. The reversal of 198716755 is 557617891.

It is a happy number.

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

It is not a de Polignac number, because 198716755 - 2³ = 198716747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198716699 and 198716708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130846 + ... + 132355.

It is an arithmetic number, because the mean of its divisors is an integer number (30005028).

Almost surely, 2^198716755 is an apocalyptic number.

198716755 is a deficient number, since it is larger than the sum of its proper divisors (41323469).

198716755 is a wasteful number, since it uses less digits than its factorization.

198716755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263357.

The product of its digits is 529200, while the sum is 49.

The square root of 198716755 is about 14096.6930519182. The cubic root of 198716755 is about 583.5501193345.

The spelling of 198716755 in words is "one hundred ninety-eight million, seven hundred sixteen thousand, seven hundred fifty-five".