190207217 has 8 divisors (see below), whose sum is σ = 198918720. Its totient is φ = 181532560.

The previous prime is 190207207. The next prime is 190207231. The reversal of 190207217 is 712702091.

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

It is not a de Polignac number, because 190207217 - 2¹⁰ = 190206193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190207217.

It is not an unprimeable number, because it can be changed into a prime (190207207) 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, 1634 + ... + 19572.

It is an arithmetic number, because the mean of its divisors is an integer number (24864840).

Almost surely, 2^190207217 is an apocalyptic number.

It is an amenable number.

190207217 is a deficient number, since it is larger than the sum of its proper divisors (8711503).

190207217 is a wasteful number, since it uses less digits than its factorization.

190207217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18423.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 190207217 is about 13791.5632543958. The cubic root of 190207217 is about 575.0986265604.

The spelling of 190207217 in words is "one hundred ninety million, two hundred seven thousand, two hundred seventeen".