82667711 has 4 divisors (see below), whose sum is σ = 94477392. Its totient is φ = 70858032.

The previous prime is 82667699. The next prime is 82667779. The reversal of 82667711 is 11776628.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 82667711 - 2¹⁰ = 82666687 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 (82667411) 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 3 ways as a sum of consecutive naturals, for example, 5904830 + ... + 5904843.

It is an arithmetic number, because the mean of its divisors is an integer number (23619348).

Almost surely, 2^82667711 is an apocalyptic number.

82667711 is a deficient number, since it is larger than the sum of its proper divisors (11809681).

82667711 is a wasteful number, since it uses less digits than its factorization.

82667711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11809680.

The product of its digits is 28224, while the sum is 38.

The square root of 82667711 is about 9092.1785618189. The cubic root of 82667711 is about 435.6241728798.

The spelling of 82667711 in words is "eighty-two million, six hundred sixty-seven thousand, seven hundred eleven".