216797205 has 8 divisors (see below), whose sum is σ = 346875552. Its totient is φ = 115625168.

The previous prime is 216797197. The next prime is 216797213. The reversal of 216797205 is 502797612.

It is an interprime number because it is at equal distance from previous prime (216797197) and next prime (216797213).

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 216797205 - 2³ = 216797197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7226559 + ... + 7226588.

It is an arithmetic number, because the mean of its divisors is an integer number (43359444).

Almost surely, 2^216797205 is an apocalyptic number.

It is an amenable number.

216797205 is a deficient number, since it is larger than the sum of its proper divisors (130078347).

216797205 is a wasteful number, since it uses less digits than its factorization.

216797205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14453155.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 216797205 is about 14724.0349429088. The cubic root of 216797205 is about 600.7372465194.

The spelling of 216797205 in words is "two hundred sixteen million, seven hundred ninety-seven thousand, two hundred five".