83718211 has 2 divisors, whose sum is σ = 83718212. Its totient is φ = 83718210.

The previous prime is 83718181. The next prime is 83718221. The reversal of 83718211 is 11281738.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83718211 - 2⁷ = 83718083 is a prime.

It is not a weakly prime, because it can be changed into another prime (83718221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41859105 + 41859106.

It is an arithmetic number, because the mean of its divisors is an integer number (41859106).

Almost surely, 2^83718211 is an apocalyptic number.

83718211 is a deficient number, since it is larger than the sum of its proper divisors (1).

83718211 is an equidigital number, since it uses as much as digits as its factorization.

83718211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 31.

The square root of 83718211 is about 9149.7656254136. The cubic root of 83718211 is about 437.4616430046.

Adding to 83718211 its reverse (11281738), we get a palindrome (94999949).

The spelling of 83718211 in words is "eighty-three million, seven hundred eighteen thousand, two hundred eleven".