82856663 has 8 divisors (see below), whose sum is σ = 88083120. Its totient is φ = 77716800.

The previous prime is 82856651. The next prime is 82856671. The reversal of 82856663 is 36665828.

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

It is a cyclic number.

It is not a de Polignac number, because 82856663 - 2⁴ = 82856647 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 (82856633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19670 + ... + 23507.

It is an arithmetic number, because the mean of its divisors is an integer number (11010390).

Almost surely, 2^82856663 is an apocalyptic number.

82856663 is a deficient number, since it is larger than the sum of its proper divisors (5226457).

82856663 is a wasteful number, since it uses less digits than its factorization.

82856663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43297.

The product of its digits is 414720, while the sum is 44.

The square root of 82856663 is about 9102.5635400144. The cubic root of 82856663 is about 435.9558195982.

The spelling of 82856663 in words is "eighty-two million, eight hundred fifty-six thousand, six hundred sixty-three".