198970345 has 8 divisors (see below), whose sum is σ = 272873664. Its totient is φ = 136436784.

The previous prime is 198970327. The next prime is 198970379. The reversal of 198970345 is 543079891.

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 198970345 - 2²³ = 190581737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 198970295 and 198970304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2842399 + ... + 2842468.

It is an arithmetic number, because the mean of its divisors is an integer number (34109208).

Almost surely, 2^198970345 is an apocalyptic number.

It is an amenable number.

198970345 is a deficient number, since it is larger than the sum of its proper divisors (73903319).

198970345 is an equidigital number, since it uses as much as digits as its factorization.

198970345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5684879.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 198970345 is about 14105.6848468977. The cubic root of 198970345 is about 583.7982439758.

The spelling of 198970345 in words is "one hundred ninety-eight million, nine hundred seventy thousand, three hundred forty-five".