198412117 has 8 divisors (see below), whose sum is σ = 221140800. Its totient is φ = 176912064.

The previous prime is 198412111. The next prime is 198412129. The reversal of 198412117 is 711214891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198412117 - 2⁷ = 198411989 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 (198412111) 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, 306817 + ... + 307462.

It is an arithmetic number, because the mean of its divisors is an integer number (27642600).

Almost surely, 2^198412117 is an apocalyptic number.

198412117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

198412117 is a deficient number, since it is larger than the sum of its proper divisors (22728683).

198412117 is a wasteful number, since it uses less digits than its factorization.

198412117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614315.

The product of its digits is 4032, while the sum is 34.

The square root of 198412117 is about 14085.8836073567. The cubic root of 198412117 is about 583.2517676068.

The spelling of 198412117 in words is "one hundred ninety-eight million, four hundred twelve thousand, one hundred seventeen".