198434959 has 8 divisors (see below), whose sum is σ = 205780640. Its totient is φ = 191193696.

The previous prime is 198434927. The next prime is 198434963. The reversal of 198434959 is 959434891.

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 198434959 - 2⁵ = 198434927 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 (198434909) 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, 22224 + ... + 29845.

It is an arithmetic number, because the mean of its divisors is an integer number (25722580).

Almost surely, 2^198434959 is an apocalyptic number.

198434959 is a deficient number, since it is larger than the sum of its proper divisors (7345681).

198434959 is a wasteful number, since it uses less digits than its factorization.

198434959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52209.

The product of its digits is 1399680, while the sum is 52.

The square root of 198434959 is about 14086.6943957765. The cubic root of 198434959 is about 583.2741488435.

The spelling of 198434959 in words is "one hundred ninety-eight million, four hundred thirty-four thousand, nine hundred fifty-nine".