214947617 has 2 divisors, whose sum is σ = 214947618. Its totient is φ = 214947616.

The previous prime is 214947569. The next prime is 214947619. The reversal of 214947617 is 716749412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172554496 + 42393121 = 13136^2 + 6511^2 .

It is a cyclic number.

It is not a de Polignac number, because 214947617 - 2⁶ = 214947553 is a prime.

It is a super-3 number, since 3×214947617³ (a number of 26 digits) contains 333 as substring.

Together with 214947619, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (214947619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107473808 + 107473809.

It is an arithmetic number, because the mean of its divisors is an integer number (107473809).

Almost surely, 2^214947617 is an apocalyptic number.

It is an amenable number.

214947617 is a deficient number, since it is larger than the sum of its proper divisors (1).

214947617 is an equidigital number, since it uses as much as digits as its factorization.

214947617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

The square root of 214947617 is about 14661.0919443267. The cubic root of 214947617 is about 599.0239844800.

The spelling of 214947617 in words is "two hundred fourteen million, nine hundred forty-seven thousand, six hundred seventeen".