198687423 has 8 divisors (see below), whose sum is σ = 288999936. Its totient is φ = 120416600.

The previous prime is 198687413. The next prime is 198687443. The reversal of 198687423 is 324786891.

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 198687423 - 2¹³ = 198679231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198687413) 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, 3010383 + ... + 3010448.

It is an arithmetic number, because the mean of its divisors is an integer number (36124992).

Almost surely, 2^198687423 is an apocalyptic number.

198687423 is a deficient number, since it is larger than the sum of its proper divisors (90312513).

198687423 is a wasteful number, since it uses less digits than its factorization.

198687423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6020845.

The product of its digits is 580608, while the sum is 48.

The square root of 198687423 is about 14095.6526276721. The cubic root of 198687423 is about 583.5214058785.

The spelling of 198687423 in words is "one hundred ninety-eight million, six hundred eighty-seven thousand, four hundred twenty-three".