198897470 has 8 divisors (see below), whose sum is σ = 358015464. Its totient is φ = 79558984.

The previous prime is 198897443. The next prime is 198897487. The reversal of 198897470 is 74798891.

198897470 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9944864 + ... + 9944883.

It is an arithmetic number, because the mean of its divisors is an integer number (44751933).

Almost surely, 2^198897470 is an apocalyptic number.

198897470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198897470 is a deficient number, since it is larger than the sum of its proper divisors (159117994).

198897470 is a wasteful number, since it uses less digits than its factorization.

198897470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19889754.

The product of its (nonzero) digits is 1016064, while the sum is 53.

The square root of 198897470 is about 14103.1014319546. The cubic root of 198897470 is about 583.7269611720.

The spelling of 198897470 in words is "one hundred ninety-eight million, eight hundred ninety-seven thousand, four hundred seventy".