82856157 has 8 divisors (see below), whose sum is σ = 110526720. Its totient is φ = 55211520.

The previous prime is 82856129. The next prime is 82856171. The reversal of 82856157 is 75165828.

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

It is not a de Polignac number, because 82856157 - 2¹² = 82852061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82856177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2932 + ... + 13202.

It is an arithmetic number, because the mean of its divisors is an integer number (13815840).

Almost surely, 2^82856157 is an apocalyptic number.

It is an amenable number.

82856157 is a deficient number, since it is larger than the sum of its proper divisors (27670563).

82856157 is a wasteful number, since it uses less digits than its factorization.

82856157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12963.

The product of its digits is 134400, while the sum is 42.

The square root of 82856157 is about 9102.5357456041. The cubic root of 82856157 is about 435.9549321455.

The spelling of 82856157 in words is "eighty-two million, eight hundred fifty-six thousand, one hundred fifty-seven".