198082787 has 8 divisors (see below), whose sum is σ = 228496896. Its totient is φ = 168197832.

The previous prime is 198082747. The next prime is 198082813. The reversal of 198082787 is 787280891.

It is a happy number.

198082787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 198082787 - 2¹⁸ = 197820643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198082747) 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, 131483 + ... + 132980.

It is an arithmetic number, because the mean of its divisors is an integer number (28562112).

Almost surely, 2^198082787 is an apocalyptic number.

198082787 is a deficient number, since it is larger than the sum of its proper divisors (30414109).

198082787 is a wasteful number, since it uses less digits than its factorization.

198082787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264577.

The product of its (nonzero) digits is 451584, while the sum is 50.

The square root of 198082787 is about 14074.1886799915. The cubic root of 198082787 is about 582.9288896828.

The spelling of 198082787 in words is "one hundred ninety-eight million, eighty-two thousand, seven hundred eighty-seven".