198214712 has 8 divisors (see below), whose sum is σ = 371652600. Its totient is φ = 99107352.

The previous prime is 198214699. The next prime is 198214717. The reversal of 198214712 is 217412891.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198214717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12388412 + ... + 12388427.

It is an arithmetic number, because the mean of its divisors is an integer number (46456575).

Almost surely, 2^198214712 is an apocalyptic number.

It is an amenable number.

198214712 is a deficient number, since it is larger than the sum of its proper divisors (173437888).

198214712 is a wasteful number, since it uses less digits than its factorization.

198214712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24776845 (or 24776841 counting only the distinct ones).

The product of its digits is 8064, while the sum is 35.

The square root of 198214712 is about 14078.8746709387. The cubic root of 198214712 is about 583.0582730054.

The spelling of 198214712 in words is "one hundred ninety-eight million, two hundred fourteen thousand, seven hundred twelve".