609800219 has 16 divisors (see below), whose sum is σ = 746876928. Its totient is φ = 486443232.

The previous prime is 609800189. The next prime is 609800239. The reversal of 609800219 is 912008906.

It is a cyclic number.

It is not a de Polignac number, because 609800219 - 2⁸ = 609799963 is a prime.

It is a super-2 number, since 2×609800219² = 743712614184895922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (609800239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45227 + ... + 57140.

It is an arithmetic number, because the mean of its divisors is an integer number (46679808).

Almost surely, 2^609800219 is an apocalyptic number.

609800219 is a deficient number, since it is larger than the sum of its proper divisors (137076709).

609800219 is a wasteful number, since it uses less digits than its factorization.

609800219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102434.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 609800219 is about 24694.1332911281. The cubic root of 609800219 is about 848.0000125156. Note that the first 4 decimals are identical.

The spelling of 609800219 in words is "six hundred nine million, eight hundred thousand, two hundred nineteen".