216905098 has 8 divisors (see below), whose sum is σ = 325442592. Its totient is φ = 108424236.

The previous prime is 216905089. The next prime is 216905131. The reversal of 216905098 is 890509612.

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

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 216905098.

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, 2740 + ... + 21007.

It is an arithmetic number, because the mean of its divisors is an integer number (40680324).

Almost surely, 2^216905098 is an apocalyptic number.

216905098 is a deficient number, since it is larger than the sum of its proper divisors (108537494).

216905098 is a wasteful number, since it uses less digits than its factorization.

216905098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28316.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 216905098 is about 14727.6983266225. The cubic root of 216905098 is about 600.8368858644.

The spelling of 216905098 in words is "two hundred sixteen million, nine hundred five thousand, ninety-eight".