82047911 has 8 divisors (see below), whose sum is σ = 89815824. Its totient is φ = 74331520.

The previous prime is 82047887. The next prime is 82047941. The reversal of 82047911 is 11974028.

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

It is a cyclic number.

It is not a de Polignac number, because 82047911 - 2¹⁴ = 82031527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82047941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9506 + ... + 15951.

It is an arithmetic number, because the mean of its divisors is an integer number (11226978).

Almost surely, 2^82047911 is an apocalyptic number.

82047911 is a deficient number, since it is larger than the sum of its proper divisors (7767913).

82047911 is a wasteful number, since it uses less digits than its factorization.

82047911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25761.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 82047911 is about 9058.0301942531. The cubic root of 82047911 is about 434.5327452950.

The spelling of 82047911 in words is "eighty-two million, forty-seven thousand, nine hundred eleven".