83717243 has 2 divisors, whose sum is σ = 83717244. Its totient is φ = 83717242.

The previous prime is 83717233. The next prime is 83717251. The reversal of 83717243 is 34271738.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83717243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83717213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41858621 + 41858622.

It is an arithmetic number, because the mean of its divisors is an integer number (41858622).

Almost surely, 2^83717243 is an apocalyptic number.

83717243 is a deficient number, since it is larger than the sum of its proper divisors (1).

83717243 is an equidigital number, since it uses as much as digits as its factorization.

83717243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 35.

The square root of 83717243 is about 9149.7127277309. The cubic root of 83717243 is about 437.4599569337.

The spelling of 83717243 in words is "eighty-three million, seven hundred seventeen thousand, two hundred forty-three".