214115717 has 4 divisors (see below), whose sum is σ = 223425120. Its totient is φ = 204806316.

The previous prime is 214115711. The next prime is 214115723. The reversal of 214115717 is 717511412.

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 an interprime number because it is at equal distance from previous prime (214115711) and next prime (214115723).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214115717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214115717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214115711) 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, 4654667 + ... + 4654712.

It is an arithmetic number, because the mean of its divisors is an integer number (55856280).

Almost surely, 2^214115717 is an apocalyptic number.

It is an amenable number.

214115717 is a deficient number, since it is larger than the sum of its proper divisors (9309403).

214115717 is an equidigital number, since it uses as much as digits as its factorization.

214115717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9309402.

The product of its digits is 1960, while the sum is 29.

The square root of 214115717 is about 14632.6934294408. The cubic root of 214115717 is about 598.2501954527.

The spelling of 214115717 in words is "two hundred fourteen million, one hundred fifteen thousand, seven hundred seventeen".