82855207 has 2 divisors, whose sum is σ = 82855208. Its totient is φ = 82855206.

The previous prime is 82855193. The next prime is 82855217. The reversal of 82855207 is 70255828.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82855207 - 2²³ = 74466599 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82855217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41427603 + 41427604.

It is an arithmetic number, because the mean of its divisors is an integer number (41427604).

Almost surely, 2^82855207 is an apocalyptic number.

82855207 is a deficient number, since it is larger than the sum of its proper divisors (1).

82855207 is an equidigital number, since it uses as much as digits as its factorization.

82855207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 82855207 is about 9102.4835621933. The cubic root of 82855207 is about 435.9532659697.

The spelling of 82855207 in words is "eighty-two million, eight hundred fifty-five thousand, two hundred seven".