189067217 has 4 divisors (see below), whose sum is σ = 200188836. Its totient is φ = 177945600.

The previous prime is 189067169. The next prime is 189067231. The reversal of 189067217 is 712760981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 712760981 = 11813 ⋅60337.

It can be written as a sum of positive squares in 2 ways, for example, as 108139201 + 80928016 = 10399^2 + 8996^2 .

It is a cyclic number.

It is not a de Polignac number, because 189067217 - 2¹⁰ = 189066193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189067237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5560784 + ... + 5560817.

It is an arithmetic number, because the mean of its divisors is an integer number (50047209).

Almost surely, 2^189067217 is an apocalyptic number.

189067217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

189067217 is a deficient number, since it is larger than the sum of its proper divisors (11121619).

189067217 is a wasteful number, since it uses less digits than its factorization.

189067217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11121618.

The product of its (nonzero) digits is 42336, while the sum is 41.

The square root of 189067217 is about 13750.1715262029. The cubic root of 189067217 is about 573.9473793054.

The spelling of 189067217 in words is "one hundred eighty-nine million, sixty-seven thousand, two hundred seventeen".