82855837 has 2 divisors, whose sum is σ = 82855838. Its totient is φ = 82855836.

The previous prime is 82855763. The next prime is 82855889. The reversal of 82855837 is 73855828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76230361 + 6625476 = 8731^2 + 2574^2 .

It is a cyclic number.

It is not a de Polignac number, because 82855837 - 2¹¹ = 82853789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82855037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41427918 + 41427919.

It is an arithmetic number, because the mean of its divisors is an integer number (41427919).

Almost surely, 2^82855837 is an apocalyptic number.

It is an amenable number.

82855837 is a deficient number, since it is larger than the sum of its proper divisors (1).

82855837 is an equidigital number, since it uses as much as digits as its factorization.

82855837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 537600, while the sum is 46.

The square root of 82855837 is about 9102.5181680676. The cubic root of 82855837 is about 435.9543709088.

Subtracting from 82855837 its reverse (73855828), we obtain a palindrome (9000009).

It can be divided in two parts, 828 and 55837, that added together give a palindrome (56665).

The spelling of 82855837 in words is "eighty-two million, eight hundred fifty-five thousand, eight hundred thirty-seven".