82029191 has 2 divisors, whose sum is σ = 82029192. Its totient is φ = 82029190.

The previous prime is 82029169. The next prime is 82029217. The reversal of 82029191 is 19192028.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82029191 - 2⁶ = 82029127 is a prime.

It is a super-2 number, since 2×82029191² = 13457576352228962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82029091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41014595 + 41014596.

It is an arithmetic number, because the mean of its divisors is an integer number (41014596).

Almost surely, 2^82029191 is an apocalyptic number.

82029191 is a deficient number, since it is larger than the sum of its proper divisors (1).

82029191 is an equidigital number, since it uses as much as digits as its factorization.

82029191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 82029191 is about 9056.9967980562. The cubic root of 82029191 is about 434.4996952083.

The spelling of 82029191 in words is "eighty-two million, twenty-nine thousand, one hundred ninety-one".