82799530 has 64 divisors (see below), whose sum is σ = 172886400. Its totient is φ = 28235520.

The previous prime is 82799527. The next prime is 82799557. The reversal of 82799530 is 3599728.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 31 ways as a sum of consecutive naturals, for example, 361456 + ... + 361684.

It is an arithmetic number, because the mean of its divisors is an integer number (2701350).

Almost surely, 2^82799530 is an apocalyptic number.

82799530 is an abundant number, since it is smaller than the sum of its proper divisors (90086870).

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

82799530 is a wasteful number, since it uses less digits than its factorization.

82799530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 82799530 is about 9099.4247070900. The cubic root of 82799530 is about 435.8555935369.

The spelling of 82799530 in words is "eighty-two million, seven hundred ninety-nine thousand, five hundred thirty".