82411289 has 4 divisors (see below), whose sum is σ = 82448256. Its totient is φ = 82374324.

The previous prime is 82411283. The next prime is 82411309. The reversal of 82411289 is 98211428.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82411289 - 2⁸ = 82411033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82411283) 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, 14909 + ... + 19674.

It is an arithmetic number, because the mean of its divisors is an integer number (20612064).

Almost surely, 2^82411289 is an apocalyptic number.

It is an amenable number.

82411289 is a deficient number, since it is larger than the sum of its proper divisors (36967).

82411289 is a wasteful number, since it uses less digits than its factorization.

82411289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36966.

The product of its digits is 9216, while the sum is 35.

The square root of 82411289 is about 9078.0663690017. The cubic root of 82411289 is about 435.1732942343.

The spelling of 82411289 in words is "eighty-two million, four hundred eleven thousand, two hundred eighty-nine".