198841694 has 4 divisors (see below), whose sum is σ = 298262544. Its totient is φ = 99420846.

The previous prime is 198841691. The next prime is 198841697. The reversal of 198841694 is 496148891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 496148891 = 7 ⋅70878413.

It is an interprime number because it is at equal distance from previous prime (198841691) and next prime (198841697).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198841691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49710422 + ... + 49710425.

It is an arithmetic number, because the mean of its divisors is an integer number (74565636).

Almost surely, 2^198841694 is an apocalyptic number.

198841694 is a deficient number, since it is larger than the sum of its proper divisors (99420850).

198841694 is an equidigital number, since it uses as much as digits as its factorization.

198841694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99420849.

The product of its digits is 497664, while the sum is 50.

The square root of 198841694 is about 14101.1238559201. The cubic root of 198841694 is about 583.6723920200.

The spelling of 198841694 in words is "one hundred ninety-eight million, eight hundred forty-one thousand, six hundred ninety-four".