227198389 has 16 divisors (see below), whose sum is σ = 257118336. Its totient is φ = 198936000.

The previous prime is 227198381. The next prime is 227198429. The reversal of 227198389 is 983891722.

It is a cyclic number.

It is not a de Polignac number, because 227198389 - 2³ = 227198381 is a prime.

It is a super-3 number, since 3×227198389³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227198381) 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, 38344 + ... + 43870.

It is an arithmetic number, because the mean of its divisors is an integer number (16069896).

Almost surely, 2^227198389 is an apocalyptic number.

It is an amenable number.

227198389 is a deficient number, since it is larger than the sum of its proper divisors (29919947).

227198389 is a wasteful number, since it uses less digits than its factorization.

227198389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5676.

The product of its digits is 435456, while the sum is 49.

The square root of 227198389 is about 15073.1015056623. The cubic root of 227198389 is about 610.1946785238.

The spelling of 227198389 in words is "two hundred twenty-seven million, one hundred ninety-eight thousand, three hundred eighty-nine".