82855768 has 8 divisors (see below), whose sum is σ = 155354580. Its totient is φ = 41427880.

The previous prime is 82855763. The next prime is 82855837. The reversal of 82855768 is 86755828.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82855763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5178478 + ... + 5178493.

Almost surely, 2^82855768 is an apocalyptic number.

It is an amenable number.

82855768 is a deficient number, since it is larger than the sum of its proper divisors (72498812).

82855768 is a wasteful number, since it uses less digits than its factorization.

82855768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10356977 (or 10356973 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 49.

The square root of 82855768 is about 9102.5143779068. The cubic root of 82855768 is about 435.9542498919.

The spelling of 82855768 in words is "eighty-two million, eight hundred fifty-five thousand, seven hundred sixty-eight".