209896898 has 8 divisors (see below), whose sum is σ = 315086592. Its totient is φ = 104868036.

The previous prime is 209896859. The next prime is 209896927. The reversal of 209896898 is 898698902.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36890 + ... + 42197.

It is an arithmetic number, because the mean of its divisors is an integer number (39385824).

Almost surely, 2^209896898 is an apocalyptic number.

209896898 is a deficient number, since it is larger than the sum of its proper divisors (105189694).

209896898 is a wasteful number, since it uses less digits than its factorization.

209896898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80416.

The product of its (nonzero) digits is 4478976, while the sum is 59.

The square root of 209896898 is about 14487.8189524856. The cubic root of 209896898 is about 594.2949047111.

The spelling of 209896898 in words is "two hundred nine million, eight hundred ninety-six thousand, eight hundred ninety-eight".