214922317 has 4 divisors (see below), whose sum is σ = 215315776. Its totient is φ = 214528860.

The previous prime is 214922303. The next prime is 214922339. The reversal of 214922317 is 713229412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214922317 - 2¹¹ = 214920269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214922387) 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, 195909 + ... + 197002.

It is an arithmetic number, because the mean of its divisors is an integer number (53828944).

Almost surely, 2^214922317 is an apocalyptic number.

It is an amenable number.

214922317 is a deficient number, since it is larger than the sum of its proper divisors (393459).

214922317 is an equidigital number, since it uses as much as digits as its factorization.

214922317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393458.

The product of its digits is 6048, while the sum is 31.

The square root of 214922317 is about 14660.2290909794. The cubic root of 214922317 is about 599.0004812320. Note that the first 3 decimals are identical.

The spelling of 214922317 in words is "two hundred fourteen million, nine hundred twenty-two thousand, three hundred seventeen".