198884965 has 16 divisors (see below), whose sum is σ = 244270080. Its totient is φ = 155384320.

The previous prime is 198884963. The next prime is 198885041. The reversal of 198884965 is 569488891.

It is not a de Polignac number, because 198884965 - 2¹ = 198884963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198884963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213621 + ... + 214549.

It is an arithmetic number, because the mean of its divisors is an integer number (15266880).

Almost surely, 2^198884965 is an apocalyptic number.

It is an amenable number.

198884965 is a deficient number, since it is larger than the sum of its proper divisors (45385115).

198884965 is an equidigital number, since it uses as much as digits as its factorization.

198884965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892.

The product of its digits is 4976640, while the sum is 58.

The square root of 198884965 is about 14102.6580827871. The cubic root of 198884965 is about 583.7147276350.

The spelling of 198884965 in words is "one hundred ninety-eight million, eight hundred eighty-four thousand, nine hundred sixty-five".