198923429 has 8 divisors (see below), whose sum is σ = 201434688. Its totient is φ = 196421760.

The previous prime is 198923423. The next prime is 198923447. The reversal of 198923429 is 924329891.

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 198923429 - 2⁸ = 198923173 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 (198923423) 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, 45134 + ... + 49344.

It is an arithmetic number, because the mean of its divisors is an integer number (25179336).

Almost surely, 2^198923429 is an apocalyptic number.

It is an amenable number.

198923429 is a deficient number, since it is larger than the sum of its proper divisors (2511259).

198923429 is an equidigital number, since it uses as much as digits as its factorization.

198923429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4795.

The product of its digits is 279936, while the sum is 47.

The square root of 198923429 is about 14104.0217314070. The cubic root of 198923429 is about 583.7523550076.

The spelling of 198923429 in words is "one hundred ninety-eight million, nine hundred twenty-three thousand, four hundred twenty-nine".