198748039 has 8 divisors (see below), whose sum is σ = 231426720. Its totient is φ = 167140896.

The previous prime is 198748009. The next prime is 198748057. The reversal of 198748039 is 930847891.

It is a happy number.

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 198748039 - 2⁷ = 198747911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 198747983 and 198748001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198748009) 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, 267484 + ... + 268225.

It is an arithmetic number, because the mean of its divisors is an integer number (28928340).

Almost surely, 2^198748039 is an apocalyptic number.

198748039 is a deficient number, since it is larger than the sum of its proper divisors (32678681).

198748039 is an equidigital number, since it uses as much as digits as its factorization.

198748039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535769.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 198748039 is about 14097.8026301974. The cubic root of 198748039 is about 583.5807405135.

The spelling of 198748039 in words is "one hundred ninety-eight million, seven hundred forty-eight thousand, thirty-nine".