82661683 has 4 divisors (see below), whose sum is σ = 89020288. Its totient is φ = 76303080.

The previous prime is 82661681. The next prime is 82661713. The reversal of 82661683 is 38616628.

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 82661683 - 2¹ = 82661681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82661681) 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, 3179283 + ... + 3179308.

It is an arithmetic number, because the mean of its divisors is an integer number (22255072).

Almost surely, 2^82661683 is an apocalyptic number.

82661683 is a deficient number, since it is larger than the sum of its proper divisors (6358605).

82661683 is a wasteful number, since it uses less digits than its factorization.

82661683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6358604.

The product of its digits is 82944, while the sum is 40.

The square root of 82661683 is about 9091.8470620661. The cubic root of 82661683 is about 435.6135842783.

The spelling of 82661683 in words is "eighty-two million, six hundred sixty-one thousand, six hundred eighty-three".