82765518 has 16 divisors (see below), whose sum is σ = 180579456. Its totient is φ = 25080440.

The previous prime is 82765499. The next prime is 82765531. The reversal of 82765518 is 81556728.

It is a self number, because there is not a number n which added to its sum of digits gives 82765518.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626946 + ... + 627077.

It is an arithmetic number, because the mean of its divisors is an integer number (11286216).

Almost surely, 2^82765518 is an apocalyptic number.

82765518 is an abundant number, since it is smaller than the sum of its proper divisors (97813938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82765518 is a wasteful number, since it uses less digits than its factorization.

82765518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254039.

The product of its digits is 134400, while the sum is 42.

The square root of 82765518 is about 9097.5556057658. Note that the first 3 decimals coincide. The cubic root of 82765518 is about 435.7959057958.

The spelling of 82765518 in words is "eighty-two million, seven hundred sixty-five thousand, five hundred eighteen".