234872717 has 2 divisors, whose sum is σ = 234872718. Its totient is φ = 234872716.

The previous prime is 234872639. The next prime is 234872747. The reversal of 234872717 is 717278432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127667401 + 107205316 = 11299^2 + 10354^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234872717 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234872747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117436358 + 117436359.

It is an arithmetic number, because the mean of its divisors is an integer number (117436359).

Almost surely, 2^234872717 is an apocalyptic number.

It is an amenable number.

234872717 is a deficient number, since it is larger than the sum of its proper divisors (1).

234872717 is an equidigital number, since it uses as much as digits as its factorization.

234872717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131712, while the sum is 41.

The square root of 234872717 is about 15325.5576407516. The cubic root of 234872717 is about 616.9891458049.

The spelling of 234872717 in words is "two hundred thirty-four million, eight hundred seventy-two thousand, seven hundred seventeen".