82855597 has 6 divisors (see below), whose sum is σ = 91072814. Its totient is φ = 75323160.

The previous prime is 82855583. The next prime is 82855613. The reversal of 82855597 is 79555828.

It can be written as a sum of positive squares in only one way, i.e., 79192201 + 3663396 = 8899^2 + 1914^2 .

It is not a de Polignac number, because 82855597 - 2¹⁹ = 82331309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82855597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82855517) 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 5 ways as a sum of consecutive naturals, for example, 342258 + ... + 342499.

Almost surely, 2^82855597 is an apocalyptic number.

It is an amenable number.

82855597 is a deficient number, since it is larger than the sum of its proper divisors (8217217).

82855597 is a wasteful number, since it uses less digits than its factorization.

82855597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684779 (or 684768 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 49.

The square root of 82855597 is about 9102.5049848929. The cubic root of 82855597 is about 435.9539499803.

The spelling of 82855597 in words is "eighty-two million, eight hundred fifty-five thousand, five hundred ninety-seven".