82712611 has 4 divisors (see below), whose sum is σ = 85564800. Its totient is φ = 79860424.

The previous prime is 82712603. The next prime is 82712629. The reversal of 82712611 is 11621728.

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

It is a cyclic number.

It is not a de Polignac number, because 82712611 - 2³ = 82712603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82712611.

It is not an unprimeable number, because it can be changed into a prime (82712411) 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, 1426051 + ... + 1426108.

It is an arithmetic number, because the mean of its divisors is an integer number (21391200).

Almost surely, 2^82712611 is an apocalyptic number.

82712611 is a deficient number, since it is larger than the sum of its proper divisors (2852189).

82712611 is a wasteful number, since it uses less digits than its factorization.

82712611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852188.

The product of its digits is 1344, while the sum is 28.

The square root of 82712611 is about 9094.6473818395. The cubic root of 82712611 is about 435.7030266629.

The spelling of 82712611 in words is "eighty-two million, seven hundred twelve thousand, six hundred eleven".