83706211 has 4 divisors (see below), whose sum is σ = 83782800. Its totient is φ = 83629624.

The previous prime is 83706199. The next prime is 83706221. The reversal of 83706211 is 11260738.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11260738 = 2 ⋅5630369.

It is a cyclic number.

It is not a de Polignac number, because 83706211 - 2⁷ = 83706083 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 83706211.

It is not an unprimeable number, because it can be changed into a prime (83706221) 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, 36631 + ... + 38848.

It is an arithmetic number, because the mean of its divisors is an integer number (20945700).

Almost surely, 2^83706211 is an apocalyptic number.

83706211 is a deficient number, since it is larger than the sum of its proper divisors (76589).

83706211 is a wasteful number, since it uses less digits than its factorization.

83706211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76588.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 83706211 is about 9149.1098474114. The cubic root of 83706211 is about 437.4407403818.

Adding to 83706211 its reverse (11260738), we get a palindrome (94966949).

The spelling of 83706211 in words is "eighty-three million, seven hundred six thousand, two hundred eleven".