219795089 has 8 divisors (see below), whose sum is σ = 229628520. Its totient is φ = 210112000.

The previous prime is 219795083. The next prime is 219795101. The reversal of 219795089 is 980597912.

It is a happy number.

219795089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 144192064 + 75603025 = 12008^2 + 8695^2 .

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 219795089 - 2⁴ = 219795073 is a prime.

It is a super-2 number, since 2×219795089² = 96619762297035842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219795083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34592 + ... + 40449.

It is an arithmetic number, because the mean of its divisors is an integer number (28703565).

Almost surely, 2^219795089 is an apocalyptic number.

219795089 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

219795089 is a deficient number, since it is larger than the sum of its proper divisors (9833431).

219795089 is a wasteful number, since it uses less digits than its factorization.

219795089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75171.

The product of its (nonzero) digits is 408240, while the sum is 50.

The square root of 219795089 is about 14825.4878165948. The cubic root of 219795089 is about 603.4935898647.

The spelling of 219795089 in words is "two hundred nineteen million, seven hundred ninety-five thousand, eighty-nine".