614431217 has 2 divisors, whose sum is σ = 614431218. Its totient is φ = 614431216.

The previous prime is 614431199. The next prime is 614431241. The reversal of 614431217 is 712134416.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308915776 + 305515441 = 17576^2 + 17479^2 .

It is a cyclic number.

It is not a de Polignac number, because 614431217 - 2¹⁶ = 614365681 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 614431217.

It is not a weakly prime, because it can be changed into another prime (614431297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307215608 + 307215609.

It is an arithmetic number, because the mean of its divisors is an integer number (307215609).

Almost surely, 2^614431217 is an apocalyptic number.

It is an amenable number.

614431217 is a deficient number, since it is larger than the sum of its proper divisors (1).

614431217 is an equidigital number, since it uses as much as digits as its factorization.

614431217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 614431217 is about 24787.7231104432. The cubic root of 614431217 is about 850.1412531112.

The spelling of 614431217 in words is "six hundred fourteen million, four hundred thirty-one thousand, two hundred seventeen".