82040911 has 8 divisors (see below), whose sum is σ = 84806784. Its totient is φ = 79282560.

The previous prime is 82040843. The next prime is 82040941. The reversal of 82040911 is 11904028.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82040911 is a prime.

It is a super-2 number, since 2×82040911² = 13461422155419842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82040941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28155 + ... + 30931.

It is an arithmetic number, because the mean of its divisors is an integer number (10600848).

Almost surely, 2^82040911 is an apocalyptic number.

82040911 is a deficient number, since it is larger than the sum of its proper divisors (2765873).

82040911 is a wasteful number, since it uses less digits than its factorization.

82040911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3761.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 82040911 is about 9057.6437885357. The cubic root of 82040911 is about 434.5203874109.

Adding to 82040911 its reverse (11904028), we get a palindrome (93944939).

The spelling of 82040911 in words is "eighty-two million, forty thousand, nine hundred eleven".