82919211 has 16 divisors (see below), whose sum is σ = 116659200. Its totient is φ = 52243488.

The previous prime is 82919171. The next prime is 82919219. The reversal of 82919211 is 11291928.

It is a de Polignac number, because none of the positive numbers 2^k-82919211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82919219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25785 + ... + 28821.

It is an arithmetic number, because the mean of its divisors is an integer number (7291200).

Almost surely, 2^82919211 is an apocalyptic number.

82919211 is a deficient number, since it is larger than the sum of its proper divisors (33739989).

82919211 is a wasteful number, since it uses less digits than its factorization.

82919211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538.

The product of its digits is 2592, while the sum is 33.

The square root of 82919211 is about 9105.9986272786. The cubic root of 82919211 is about 436.0654921538.

The spelling of 82919211 in words is "eighty-two million, nine hundred nineteen thousand, two hundred eleven".