738072217 has 2 divisors, whose sum is σ = 738072218. Its totient is φ = 738072216.

The previous prime is 738072199. The next prime is 738072227. The reversal of 738072217 is 712270837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395970201 + 342102016 = 19899^2 + 18496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-738072217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (738072227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369036108 + 369036109.

It is an arithmetic number, because the mean of its divisors is an integer number (369036109).

Almost surely, 2^738072217 is an apocalyptic number.

It is an amenable number.

738072217 is a deficient number, since it is larger than the sum of its proper divisors (1).

738072217 is an equidigital number, since it uses as much as digits as its factorization.

738072217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 738072217 is about 27167.4845541504. The cubic root of 738072217 is about 903.7180416671.

It can be divided in two parts, 7380 and 72217, that added together give a palindrome (79597).

The spelling of 738072217 in words is "seven hundred thirty-eight million, seventy-two thousand, two hundred seventeen".