82557877 has 8 divisors (see below), whose sum is σ = 83954880. Its totient is φ = 81167520.

The previous prime is 82557829. The next prime is 82557919. The reversal of 82557877 is 77875528.

It is a happy number.

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 82557877 - 2¹⁵ = 82525109 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 82557877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82557677) 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, 27618 + ... + 30460.

It is an arithmetic number, because the mean of its divisors is an integer number (10494360).

Almost surely, 2^82557877 is an apocalyptic number.

It is an amenable number.

82557877 is a deficient number, since it is larger than the sum of its proper divisors (1397003).

82557877 is a wasteful number, since it uses less digits than its factorization.

82557877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323.

The product of its digits is 1097600, while the sum is 49.

The square root of 82557877 is about 9086.1365276998. The cubic root of 82557877 is about 435.4311609999.

The spelling of 82557877 in words is "eighty-two million, five hundred fifty-seven thousand, eight hundred seventy-seven".