82858507 has 4 divisors (see below), whose sum is σ = 83056680. Its totient is φ = 82660336.

The previous prime is 82858469. The next prime is 82858519. The reversal of 82858507 is 70585828.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82858507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82858537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98458 + ... + 99295.

It is an arithmetic number, because the mean of its divisors is an integer number (20764170).

Almost surely, 2^82858507 is an apocalyptic number.

82858507 is a deficient number, since it is larger than the sum of its proper divisors (198173).

82858507 is a wasteful number, since it uses less digits than its factorization.

82858507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198172.

The product of its (nonzero) digits is 179200, while the sum is 43.

The square root of 82858507 is about 9102.6648295980. The cubic root of 82858507 is about 435.9590536835.

The spelling of 82858507 in words is "eighty-two million, eight hundred fifty-eight thousand, five hundred seven".