198714439 has 8 divisors (see below), whose sum is σ = 247747968. Its totient is φ = 154842360.

The previous prime is 198714427. The next prime is 198714443. The reversal of 198714439 is 934417891.

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 198714439 - 2⁷ = 198714311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198714499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290277 + ... + 1290430.

It is an arithmetic number, because the mean of its divisors is an integer number (30968496).

Almost surely, 2^198714439 is an apocalyptic number.

198714439 is a deficient number, since it is larger than the sum of its proper divisors (49033529).

198714439 is a wasteful number, since it uses less digits than its factorization.

198714439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580725.

The product of its digits is 217728, while the sum is 46.

The square root of 198714439 is about 14096.6109047530. The cubic root of 198714439 is about 583.5478522763.

It can be divided in two parts, 19871 and 4439, that added together give a triangular number (24310 = T₂₂₀).

The spelling of 198714439 in words is "one hundred ninety-eight million, seven hundred fourteen thousand, four hundred thirty-nine".